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258114080 = 2557317727
BaseRepresentation
bin11110110001010…
…00001000100000
3122222200112221202
433120220020200
51012034122310
641340140332
76252635120
oct1730501040
9588615852
10258114080
11122775a24
12725376a8
1341623a33
14263ccc80
15179d83a5
hexf628220

258114080 has 96 divisors (see below), whose sum is σ = 700068096. Its totient is φ = 88095744.

The previous prime is 258114053. The next prime is 258114089. The reversal of 258114080 is 80411852.

It is not an unprimeable number, because it can be changed into a prime (258114089) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 354677 + ... + 355403.

It is an arithmetic number, because the mean of its divisors is an integer number (7292376).

Almost surely, 2258114080 is an apocalyptic number.

258114080 is a gapful number since it is divisible by the number (20) 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 258114080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (350034048).

258114080 is an abundant number, since it is smaller than the sum of its proper divisors (441954016).

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

258114080 is a wasteful number, since it uses less digits than its factorization.

258114080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1066 (or 1058 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 29.

The square root of 258114080 is about 16065.9291670292. The cubic root of 258114080 is about 636.7034922308.

It can be divided in two parts, 2581 and 14080, that added together give a palindrome (16661).

The spelling of 258114080 in words is "two hundred fifty-eight million, one hundred fourteen thousand, eighty".

Divisors: 1 2 4 5 7 8 10 14 16 20 28 32 35 40 56 70 80 112 140 160 224 280 317 560 634 727 1120 1268 1454 1585 2219 2536 2908 3170 3635 4438 5072 5089 5816 6340 7270 8876 10144 10178 11095 11632 12680 14540 17752 20356 22190 23264 25360 25445 29080 35504 40712 44380 50720 50890 58160 71008 81424 88760 101780 116320 162848 177520 203560 230459 355040 407120 460918 814240 921836 1152295 1613213 1843672 2304590 3226426 3687344 4609180 6452852 7374688 8066065 9218360 12905704 16132130 18436720 25811408 32264260 36873440 51622816 64528520 129057040 258114080