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257214412752 = 243112693495189
BaseRepresentation
bin1110111110001100101…
…1000111011111010000
3220120220201021222220120
43233203023013133100
513203233342202002
6314055045310240
724404004302043
oct3574313073720
9816821258816
10257214412752
119a0a1915340
1241a24705380
131b34192738b
14c640a22c5a
156a56387cbc
hex3be32c77d0

257214412752 has 160 divisors (see below), whose sum is σ = 729797040000. Its totient is φ = 77416581120.

The previous prime is 257214412729. The next prime is 257214412759.

257214412752 is nontrivially palindromic in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (257214412759) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 49566574 + ... + 49571762.

It is an arithmetic number, because the mean of its divisors is an integer number (4561231500).

Almost surely, 2257214412752 is an apocalyptic number.

257214412752 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 257214412752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (364898520000).

257214412752 is an abundant number, since it is smaller than the sum of its proper divisors (472582627248).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

257214412752 is a wasteful number, since it uses less digits than its factorization.

257214412752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5829 (or 5823 counting only the distinct ones).

The product of its digits is 313600, while the sum is 42.

It can be divided in two parts, 257214 and 412752, that added together give a palindrome (669966).

The spelling of 257214412752 in words is "two hundred fifty-seven billion, two hundred fourteen million, four hundred twelve thousand, seven hundred fifty-two".

Divisors: 1 2 3 4 6 8 11 12 16 22 24 33 44 48 66 88 132 176 264 269 349 528 538 698 807 1047 1076 1396 1614 2094 2152 2792 2959 3228 3839 4188 4304 5189 5584 5918 6456 7678 8376 8877 10378 11517 11836 12912 15356 15567 16752 17754 20756 23034 23672 30712 31134 35508 41512 46068 47344 57079 61424 62268 71016 83024 92136 93881 114158 124536 142032 171237 184272 187762 228316 249072 281643 342474 375524 456632 563286 684948 751048 913264 1032691 1126572 1369896 1395841 1502096 1810961 2065382 2253144 2739792 2791682 3098073 3621922 4130764 4187523 4506288 5432883 5583364 6196146 7243844 8261528 8375046 10865766 11166728 12392292 14487688 15354251 16523056 16750092 19920571 21731532 22333456 24784584 28975376 30708502 33500184 39841142 43463064 46062753 49569168 59761713 61417004 67000368 79682284 86926128 92125506 119523426 122834008 159364568 184251012 239046852 245668016 318729136 368502024 478093704 487148509 737004048 956187408 974297018 1461445527 1948594036 2922891054 3897188072 5358633599 5845782108 7794376144 10717267198 11691564216 16075900797 21434534396 23383128432 32151801594 42869068792 64303603188 85738137584 128607206376 257214412752