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51423232415 = 5101475121433
BaseRepresentation
bin101111111001000100…
…000100000110011111
311220201202212212110112
4233321010010012133
51320303321414130
635342402200235
73500213156252
oct577104040637
9156652785415
1051423232415
111a89908a695
129b7165307b
134b06893c99
1426bb76d099
15150e7c8495
hexbf910419f

51423232415 has 16 divisors (see below), whose sum is σ = 62334873216. Its totient is φ = 40720800000.

The previous prime is 51423232381. The next prime is 51423232417.

51423232415 is nontrivially palindromic in base 10.

51423232415 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 51423232415 - 218 = 51422970271 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51423232417) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2388539 + ... + 2409971.

It is an arithmetic number, because the mean of its divisors is an integer number (3895929576).

Almost surely, 251423232415 is an apocalyptic number.

51423232415 is a deficient number, since it is larger than the sum of its proper divisors (10911640801).

51423232415 is a wasteful number, since it uses less digits than its factorization.

51423232415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26290.

The product of its digits is 28800, while the sum is 32.

The spelling of 51423232415 in words is "fifty-one billion, four hundred twenty-three million, two hundred thirty-two thousand, four hundred fifteen".

Divisors: 1 5 101 505 4751 21433 23755 107165 479851 2164733 2399255 10823665 101828183 509140915 10284646483 51423232415