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56102292 = 22321558397
BaseRepresentation
bin1101011000000…
…0110110010100
310220120021212200
43112000312110
5103330233132
65322244500
71250601351
oct326006624
9126507780
1056102292
1129739534
1216956730
13b813b2c
147645628
154dd2d7c
hex3580d94

56102292 has 18 divisors (see below), whose sum is σ = 141814218. Its totient is φ = 18700752.

The previous prime is 56102257. The next prime is 56102297. The reversal of 56102292 is 29220165.

It can be written as a sum of positive squares in only one way, i.e., 45643536 + 10458756 = 6756^2 + 3234^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56102297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 779163 + ... + 779234.

Almost surely, 256102292 is an apocalyptic number.

It is an amenable number.

56102292 is an abundant number, since it is smaller than the sum of its proper divisors (85711926).

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

56102292 is a wasteful number, since it uses less digits than its factorization.

56102292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1558407 (or 1558402 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 56102292 is about 7490.1463270086. The cubic root of 56102292 is about 382.8190443318.

The spelling of 56102292 in words is "fifty-six million, one hundred two thousand, two hundred ninety-two".

Divisors: 1 2 3 4 6 9 12 18 36 1558397 3116794 4675191 6233588 9350382 14025573 18700764 28051146 56102292