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56798980 = 225719131163
BaseRepresentation
bin1101100010101…
…0111100000100
310221212200112221
43120222330010
5104020031410
65345222124
71256532460
oct330527404
9127780487
1056798980
112a074a07
1217031944
13b9c8c84
1477874a0
154ebe4da
hex362af04

56798980 has 96 divisors (see below), whose sum is σ = 145474560. Its totient is φ = 18195840.

The previous prime is 56798971. The next prime is 56798993. The reversal of 56798980 is 8989765.

It is a super-2 number, since 2×567989802 = 6452248258080800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 348379 + ... + 348541.

It is an arithmetic number, because the mean of its divisors is an integer number (1515360).

Almost surely, 256798980 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56798980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72737280).

56798980 is an abundant number, since it is smaller than the sum of its proper divisors (88675580).

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

56798980 is a wasteful number, since it uses less digits than its factorization.

56798980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329 (or 327 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 52.

The square root of 56798980 is about 7536.5098022891. The cubic root of 56798980 is about 384.3971675584.

The spelling of 56798980 in words is "fifty-six million, seven hundred ninety-eight thousand, nine hundred eighty".

Divisors: 1 2 4 5 7 10 14 19 20 28 35 38 70 76 95 131 133 140 163 190 262 266 326 380 524 532 652 655 665 815 917 1141 1310 1330 1630 1834 2282 2489 2620 2660 3097 3260 3668 4564 4585 4978 5705 6194 9170 9956 11410 12388 12445 15485 17423 18340 21353 21679 22820 24890 30970 34846 42706 43358 49780 61940 69692 85412 86716 87115 106765 108395 149471 174230 213530 216790 298942 348460 405707 427060 433580 597884 747355 811414 1494710 1622828 2028535 2839949 2989420 4057070 5679898 8114140 11359796 14199745 28399490 56798980