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255916053 = 32188915053
BaseRepresentation
bin11110100000011…
…11100000010101
3122211112212211100
433100033200111
51011003303203
641221100313
76225151641
oct1720174025
9584485740
10255916053
11121504578
1271857699
1341034423
1425db9c21
1517701ea3
hexf40f815

255916053 has 12 divisors (see below), whose sum is σ = 369876780. Its totient is φ = 170509056.

The previous prime is 255916043. The next prime is 255916057. The reversal of 255916053 is 350619552.

255916053 is a `hidden beast` number, since 2 + 5 + 591 + 60 + 5 + 3 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 195356529 + 60559524 = 13977^2 + 7782^2 .

It is not a de Polignac number, because 255916053 - 210 = 255915029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 255915999 and 255916017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255916057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9475 + ... + 24527.

It is an arithmetic number, because the mean of its divisors is an integer number (30823065).

Almost surely, 2255916053 is an apocalyptic number.

It is an amenable number.

255916053 is a deficient number, since it is larger than the sum of its proper divisors (113960727).

255916053 is a wasteful number, since it uses less digits than its factorization.

255916053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16948 (or 16945 counting only the distinct ones).

The product of its (nonzero) digits is 40500, while the sum is 36.

The square root of 255916053 is about 15997.3764411543. The cubic root of 255916053 is about 634.8910082224.

The spelling of 255916053 in words is "two hundred fifty-five million, nine hundred sixteen thousand, fifty-three".

Divisors: 1 3 9 1889 5667 15053 17001 45159 135477 28435117 85305351 255916053