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56912304969 = 3413220392
BaseRepresentation
bin110101000000001111…
…001101101101001001
312102220022112122110000
4311000033031231021
51413024022224334
642051204113213
74053224416242
oct650017155511
9172808478400
1056912304969
1122155570093
12b043995809
13549cb4cc00
142a7c77dcc9
15173163a299
hexd403cdb49

56912304969 has 45 divisors (see below), whose sum is σ = 92105159223. Its totient is φ = 35005780368.

The previous prime is 56912304941. The next prime is 56912304971. The reversal of 56912304969 is 96940321965.

The square root of 56912304969 is 238563.

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

56912304969 is a `hidden beast` number, since 569 + 1 + 2 + 30 + 49 + 6 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 8418980025 + 48493324944 = 91755^2 + 220212^2 .

It is not a de Polignac number, because 56912304969 - 211 = 56912302921 is a prime.

It is a super-2 number, since 2×569123049692 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (56912304979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 27910852 + ... + 27912890.

Almost surely, 256912304969 is an apocalyptic number.

56912304969 is the 238563-rd square number.

56912304969 is the 119282-nd centered octagonal number.

It is an amenable number.

56912304969 is a deficient number, since it is larger than the sum of its proper divisors (35192854254).

56912304969 is an frugal number, since it uses more digits than its factorization.

56912304969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4116 (or 2055 counting only the distinct ones).

The product of its (nonzero) digits is 3149280, while the sum is 54.

The spelling of 56912304969 in words is "fifty-six billion, nine hundred twelve million, three hundred four thousand, nine hundred sixty-nine".

Divisors: 1 3 9 13 27 39 81 117 169 351 507 1053 1521 2039 4563 6117 13689 18351 26507 55053 79521 165159 238563 344591 715689 1033773 2147067 3101319 4157521 9303957 12472563 27911871 37417689 54047773 112253067 162143319 336759201 486429957 702621049 1459289871 2107863147 4377869613 6323589441 18970768323 56912304969