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56197752 = 23313281641
BaseRepresentation
bin1101011001100…
…0001001111000
310220202010211020
43112120021320
5103341312002
65324302440
71251446562
oct326301170
9126663736
1056197752
11297a4226
12169a1a20
13b848410
14766c332
154e012bc
hex3598278

56197752 has 64 divisors (see below), whose sum is σ = 152076960. Its totient is φ = 17203200.

The previous prime is 56197721. The next prime is 56197753. The reversal of 56197752 is 25779165.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56197753) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87352 + ... + 87992.

Almost surely, 256197752 is an apocalyptic number.

56197752 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56197752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76038480).

56197752 is an abundant number, since it is smaller than the sum of its proper divisors (95879208).

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

56197752 is a wasteful number, since it uses less digits than its factorization.

56197752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 944 (or 940 counting only the distinct ones).

The product of its digits is 132300, while the sum is 42.

The square root of 56197752 is about 7496.5159907786. The cubic root of 56197752 is about 383.0360479356.

The spelling of 56197752 in words is "fifty-six million, one hundred ninety-seven thousand, seven hundred fifty-two".

Divisors: 1 2 3 4 6 8 12 13 24 26 39 52 78 104 156 281 312 562 641 843 1124 1282 1686 1923 2248 2564 3372 3653 3846 5128 6744 7306 7692 8333 10959 14612 15384 16666 21918 24999 29224 33332 43836 49998 66664 87672 99996 180121 199992 360242 540363 720484 1080726 1440968 2161452 2341573 4322904 4683146 7024719 9366292 14049438 18732584 28098876 56197752