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51504113244 = 22341523200159
BaseRepresentation
bin101111111101111000…
…100110011001011100
311220221102002001002210
4233331320212121130
51320440023110434
635354411520420
73502214511363
oct577570463134
9156842061083
1051504113244
111a92a802651
129b94759110
134b1a57226c
1426c83c47da
151516952ee9
hexbfde2665c

51504113244 has 48 divisors (see below), whose sum is σ = 123343395840. Its totient is φ = 16717196160.

The previous prime is 51504113231. The next prime is 51504113263. The reversal of 51504113244 is 44231140515.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 157237 + ... + 357395.

It is an arithmetic number, because the mean of its divisors is an integer number (2569654080).

Almost surely, 251504113244 is an apocalyptic number.

It is an amenable number.

51504113244 is an abundant number, since it is smaller than the sum of its proper divisors (71839282596).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51504113244 is a wasteful number, since it uses less digits than its factorization.

51504113244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200730 (or 200728 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 30.

Adding to 51504113244 its reverse (44231140515), we get a palindrome (95735253759).

It can be divided in two parts, 5150411 and 3244, that added together give a triangular number (5153655 = T3210).

The spelling of 51504113244 in words is "fifty-one billion, five hundred four million, one hundred thirteen thousand, two hundred forty-four".

Divisors: 1 2 3 4 6 12 41 82 123 164 246 492 523 1046 1569 2092 3138 6276 21443 42886 64329 85772 128658 200159 257316 400318 600477 800636 1200954 2401908 8206519 16413038 24619557 32826076 49239114 98478228 104683157 209366314 314049471 418732628 628098942 1256197884 4292009437 8584018874 12876028311 17168037748 25752056622 51504113244