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56856158149 = 7173193243263
BaseRepresentation
bin110100111100111001…
…000001111111000101
312102202101220002111011
4310330321001333011
51412420134030044
642041440442221
74051643241010
oct647471017705
9172671802434
1056856158149
112212690115a
12b029019371
135491321a3b
142a75126377
15172b749134
hexd3ce41fc5

56856158149 has 16 divisors (see below), whose sum is σ = 65692956672. Its totient is φ = 48200905728.

The previous prime is 56856158141. The next prime is 56856158167. The reversal of 56856158149 is 94185165865.

It is a cyclic number.

It is not a de Polignac number, because 56856158149 - 23 = 56856158141 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 56856158093 and 56856158102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56856158141) 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, 112092 + ... + 355354.

It is an arithmetic number, because the mean of its divisors is an integer number (4105809792).

Almost surely, 256856158149 is an apocalyptic number.

It is an amenable number.

56856158149 is a deficient number, since it is larger than the sum of its proper divisors (8836798523).

56856158149 is a wasteful number, since it uses less digits than its factorization.

56856158149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243636.

The product of its digits is 10368000, while the sum is 58.

The spelling of 56856158149 in words is "fifty-six billion, eight hundred fifty-six million, one hundred fifty-eight thousand, one hundred forty-nine".

Divisors: 1 7 173 193 1211 1351 33389 233723 243263 1702841 42084499 46949759 294591493 328648313 8122308307 56856158149