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51384248315 = 517415902843
BaseRepresentation
bin101111110110101111…
…010110011111111011
311220122001112021022222
4233312233112133323
51320213331421230
635334450434255
73466230622061
oct576657263773
9156561467288
1051384248315
111a879083324
129b6059298b
134acb79497a
1426b6502031
15150b1776e5
hexbf6bd67fb

51384248315 has 8 divisors (see below), whose sum is σ = 61696525488. Its totient is φ = 41083780320.

The previous prime is 51384248303. The next prime is 51384248327.

51384248315 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (51384248303) and next prime (51384248327).

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-51384248315 is a prime.

It is a Duffinian 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, 2942717 + ... + 2960126.

It is an arithmetic number, because the mean of its divisors is an integer number (7712065686).

Almost surely, 251384248315 is an apocalyptic number.

51384248315 is a deficient number, since it is larger than the sum of its proper divisors (10312277173).

51384248315 is a wasteful number, since it uses less digits than its factorization.

51384248315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5904589.

The product of its digits is 460800, while the sum is 44.

The spelling of 51384248315 in words is "fifty-one billion, three hundred eighty-four million, two hundred forty-eight thousand, three hundred fifteen".

Divisors: 1 5 1741 8705 5902843 29514215 10276849663 51384248315