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481264558382480 = 245163114113234317
BaseRepresentation
bin110110101101101010010001…
…1000010111001110110010000
32100010000102221112210212201012
41231123110203002321312100
51001040014303421214410
64423321515210230052
7203241134255003405
oct15533244302716620
92303012845725635
10481264558382480
1112a389175736134
1245b88366a25328
131787008c930292
1486bb4867622ac
153a98be0277605
hex1b5b5230b9d90

481264558382480 has 80 divisors (see below), whose sum is σ = 1125903769136064. Its totient is φ = 191307980183040.

The previous prime is 481264558382479. The next prime is 481264558382519. The reversal of 481264558382480 is 84283855462184.

It is a tau number, because it is divible by the number of its divisors (80).

It is a self number, because there is not a number n which added to its sum of digits gives 481264558382480.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 147182282 + ... + 150416598.

Almost surely, 2481264558382480 is an apocalyptic number.

481264558382480 is a gapful number since it is divisible by the number (40) 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 481264558382480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (562951884568032).

481264558382480 is an abundant number, since it is smaller than the sum of its proper divisors (644639210753584).

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

481264558382480 is a wasteful number, since it uses less digits than its factorization.

481264558382480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3245904 (or 3245898 counting only the distinct ones).

The product of its (nonzero) digits is 471859200, while the sum is 68.

The spelling of 481264558382480 in words is "four hundred eighty-one trillion, two hundred sixty-four billion, five hundred fifty-eight million, three hundred eighty-two thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 40 80 163 326 652 815 1304 1630 2608 3260 6520 11411 13040 22822 45644 57055 91288 114110 182576 228220 456440 912880 1859993 3234317 3719986 6468634 7439972 9299965 12937268 14879944 16171585 18599930 25874536 29759888 32343170 37199860 51749072 64686340 74399720 129372680 148799440 258745360 527193671 1054387342 2108774684 2635968355 4217549368 5271936710 8435098736 10543873420 21087746840 36906791287 42175493680 73813582574 147627165148 184533956435 295254330296 369067912870 590508660592 738135825740 1476271651480 2952543302960 6015806979781 12031613959562 24063227919124 30079034898905 48126455838248 60158069797810 96252911676496 120316139595620 240632279191240 481264558382480