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51415051415 = 57131011139901
BaseRepresentation
bin101111111000100100…
…110110110010010111
311220201012111020020112
4233320210312302113
51320244223121130
635341510553235
73500053504040
oct577044666227
9156635436215
1051415051415
111a894502132
129b6a96881b
134b04c8b360
1426ba63d8c7
15150dc0e495
hexbf8936c97

51415051415 has 64 divisors (see below), whose sum is σ = 77374386432. Its totient is φ = 31933440000.

The previous prime is 51415051399. The next prime is 51415051421.

51415051415 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 51415051415 - 24 = 51415051399 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5187965 + ... + 5197865.

It is an arithmetic number, because the mean of its divisors is an integer number (1208974788).

Almost surely, 251415051415 is an apocalyptic number.

51415051415 is a deficient number, since it is larger than the sum of its proper divisors (25959335017).

51415051415 is a wasteful number, since it uses less digits than its factorization.

51415051415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10140.

The product of its (nonzero) digits is 10000, while the sum is 32.

It can be divided in two parts, 514150 and 51415, that added together give a palindrome (565565).

The spelling of 51415051415 in words is "fifty-one billion, four hundred fifteen million, fifty-one thousand, four hundred fifteen".

Divisors: 1 5 7 13 35 65 91 101 113 455 505 565 707 791 1313 1469 3535 3955 6565 7345 9191 9901 10283 11413 45955 49505 51415 57065 69307 79891 128713 148369 346535 399455 643565 741845 900991 1000001 1038583 1118813 4504955 5000005 5192915 5594065 7000007 7831691 13000013 14544569 35000035 39158455 65000065 72722845 91000091 101811983 113000113 455000455 509059915 565000565 791000791 1469001469 3955003955 7345007345 10283010283 51415051415