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53128082135 = 525741344811
BaseRepresentation
bin110001011110101011…
…100011001011010111
312002010120212012121202
4301132223203023113
51332301242112020
640223503103115
73560364150512
oct613653431327
9162116765552
1053128082135
11205934654a7
12a3685a1a9b
135018b4aabb
1427ddd57d79
1515ae2d8e75
hexc5eae32d7

53128082135 has 8 divisors (see below), whose sum is σ = 64001768976. Its totient is φ = 42337085440.

The previous prime is 53128082129. The next prime is 53128082143.

53128082135 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2k-53128082135 is a prime.

It is a super-2 number, since 2×531280821352 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20671121 + ... + 20673690.

It is an arithmetic number, because the mean of its divisors is an integer number (8000221122).

Almost surely, 253128082135 is an apocalyptic number.

53128082135 is a deficient number, since it is larger than the sum of its proper divisors (10873686841).

53128082135 is a wasteful number, since it uses less digits than its factorization.

53128082135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41345073.

The product of its (nonzero) digits is 57600, while the sum is 38.

The spelling of 53128082135 in words is "fifty-three billion, one hundred twenty-eight million, eighty-two thousand, one hundred thirty-five".

Divisors: 1 5 257 1285 41344811 206724055 10625616427 53128082135