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56156030253 = 326239558917
BaseRepresentation
bin110100010011001010…
…010000010100101101
312100221121110220120100
4310103022100110231
51410001420432003
641444150341313
74025412244551
oct642312202455
9170847426510
1056156030253
11218a7684764
12aa7265a839
1353ac26938b
142a0a157861
1516da04dba3
hexd1329052d

56156030253 has 6 divisors (see below), whose sum is σ = 81114265934. Its totient is φ = 37437353496.

The previous prime is 56156030237. The next prime is 56156030311. The reversal of 56156030253 is 35203065165.

56156030253 is a `hidden beast` number, since 5 + 61 + 560 + 30 + 2 + 5 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 56068083369 + 87946884 = 236787^2 + 9378^2 .

It is not a de Polignac number, because 56156030253 - 24 = 56156030237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56156230253) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3119779450 + ... + 3119779467.

Almost surely, 256156030253 is an apocalyptic number.

It is an amenable number.

56156030253 is a deficient number, since it is larger than the sum of its proper divisors (24958235681).

56156030253 is a wasteful number, since it uses less digits than its factorization.

56156030253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6239558923 (or 6239558920 counting only the distinct ones).

The product of its (nonzero) digits is 81000, while the sum is 36.

The spelling of 56156030253 in words is "fifty-six billion, one hundred fifty-six million, thirty thousand, two hundred fifty-three".

Divisors: 1 3 9 6239558917 18718676751 56156030253