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56407961243 = 312368776819
BaseRepresentation
bin110100100010001011…
…010010111010011011
312101121011112022220202
4310202023102322123
51411010414224433
641525150212415
74034561521334
oct644213227233
9171534468822
1056407961243
1121a16907197
12ab22ab410b
13541c50697a
142a317b728b
151702214ee8
hexd222d2e9b

56407961243 has 8 divisors (see below), whose sum is σ = 58230789120. Its totient is φ = 54585334440.

The previous prime is 56407961231. The next prime is 56407961257. The reversal of 56407961243 is 34216970465.

56407961243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 56407961243 - 228 = 56139525787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56407961293) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 695888 + ... + 772706.

It is an arithmetic number, because the mean of its divisors is an integer number (7278848640).

Almost surely, 256407961243 is an apocalyptic number.

56407961243 is a deficient number, since it is larger than the sum of its proper divisors (1822827877).

56407961243 is a wasteful number, since it uses less digits than its factorization.

56407961243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100537.

The product of its (nonzero) digits is 1088640, while the sum is 47.

The spelling of 56407961243 in words is "fifty-six billion, four hundred seven million, nine hundred sixty-one thousand, two hundred forty-three".

Divisors: 1 31 23687 76819 734297 2381389 1819611653 56407961243