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51349261310 = 2510531487601
BaseRepresentation
bin101111110100101001…
…111000101111111110
311220112121200202011222
4233310221320233332
51320130402330220
635331200513342
73465324343124
oct576451705776
9156477622158
1051349261310
111a860357046
129b5091b852
134ac4464ab9
1426b19d5914
151508065e25
hexbf4a78bfe

51349261310 has 16 divisors (see below), whose sum is σ = 92437636752. Its totient is φ = 20537712000.

The previous prime is 51349261253. The next prime is 51349261321. The reversal of 51349261310 is 1316294315.

It is a super-2 number, since 2×513492613102 (a number of 22 digits) contains 22 as substring.

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, 138491 + ... + 349110.

It is an arithmetic number, because the mean of its divisors is an integer number (5777352297).

Almost surely, 251349261310 is an apocalyptic number.

51349261310 is a deficient number, since it is larger than the sum of its proper divisors (41088375442).

51349261310 is a wasteful number, since it uses less digits than its factorization.

51349261310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 498139.

The product of its (nonzero) digits is 19440, while the sum is 35.

The spelling of 51349261310 in words is "fifty-one billion, three hundred forty-nine million, two hundred sixty-one thousand, three hundred ten".

Divisors: 1 2 5 10 10531 21062 52655 105310 487601 975202 2438005 4876010 5134926131 10269852262 25674630655 51349261310