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56083238761 = 112215292
BaseRepresentation
bin110100001110110100…
…100100111101101001
312100202112111201102011
4310032310210331221
51404324302120021
641433030235521
74023536443504
oct641664447551
9170675451364
1056083238761
112186a587400
12aa521b5ba1
13539a1610a4
142a0060a13b
1516d3970de1
hexd0ed24f69

56083238761 has 9 divisors (see below), whose sum is σ = 61648076343. Its totient is φ = 50982394320.

The previous prime is 56083238713. The next prime is 56083238779. The reversal of 56083238761 is 16783238065.

The square root of 56083238761 is 236819.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 9219648361 + 46863590400 = 96019^2 + 216480^2 .

It is not a de Polignac number, because 56083238761 - 27 = 56083238633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56083338761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2594245 + ... + 2615773.

Almost surely, 256083238761 is an apocalyptic number.

56083238761 is the 236819-th square number.

56083238761 is the 118410-th centered octagonal number.

It is an amenable number.

56083238761 is a deficient number, since it is larger than the sum of its proper divisors (5564837582).

56083238761 is an frugal number, since it uses more digits than its factorization.

56083238761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43080 (or 21540 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 49.

Multiplying 56083238761 by its sum of digits (49), we get a square (2748078699289 = 16577332).

The spelling of 56083238761 in words is "fifty-six billion, eighty-three million, two hundred thirty-eight thousand, seven hundred sixty-one".

Divisors: 1 11 121 21529 236819 2605009 463497841 5098476251 56083238761