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56015061040 = 2451734047331
BaseRepresentation
bin110100001010110000…
…100000000000110000
312100120210012221011101
4310022300200000300
51404204323423130
641422153054144
74022051106601
oct641260400060
9170523187141
1056015061040
1121835050484
12aa333b7354
135388cacb43
1429d553dda8
1516cc9a51ca
hexd0ac20030

56015061040 has 40 divisors (see below), whose sum is σ = 130987852848. Its totient is φ = 22276504320.

The previous prime is 56015061031. The next prime is 56015061073. The reversal of 56015061040 is 4016051065.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2009826 + ... + 2037505.

Almost surely, 256015061040 is an apocalyptic number.

It is an amenable number.

56015061040 is an abundant number, since it is smaller than the sum of its proper divisors (74972791808).

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

56015061040 is a wasteful number, since it uses less digits than its factorization.

56015061040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4047517 (or 4047511 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 28.

The spelling of 56015061040 in words is "fifty-six billion, fifteen million, sixty-one thousand, forty".

Divisors: 1 2 4 5 8 10 16 20 40 80 173 346 692 865 1384 1730 2768 3460 6920 13840 4047331 8094662 16189324 20236655 32378648 40473310 64757296 80946620 161893240 323786480 700188263 1400376526 2800753052 3500941315 5601506104 7001882630 11203012208 14003765260 28007530520 56015061040