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52153215212 = 2273794914551
BaseRepresentation
bin110000100100100100…
…101110100011101100
311222121122110211121102
4300210210232203230
51323302210341322
635543040222232
73524256005060
oct604444564354
9158548424542
1052153215212
112013314855a
12a13600a978
134bc1ba0577
14274a6adaa0
15155391e792
hexc2492e8ec

52153215212 has 24 divisors (see below), whose sum is σ = 104581666560. Its totient is φ = 22292398800.

The previous prime is 52153215173. The next prime is 52153215221. The reversal of 52153215212 is 21251235125.

It is a happy 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, 2446664 + ... + 2467887.

It is an arithmetic number, because the mean of its divisors is an integer number (4357569440).

Almost surely, 252153215212 is an apocalyptic number.

It is an amenable number.

52153215212 is an abundant number, since it is smaller than the sum of its proper divisors (52428451348).

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

52153215212 is a wasteful number, since it uses less digits than its factorization.

52153215212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4914941 (or 4914939 counting only the distinct ones).

The product of its digits is 6000, while the sum is 29.

The spelling of 52153215212 in words is "fifty-two billion, one hundred fifty-three million, two hundred fifteen thousand, two hundred twelve".

Divisors: 1 2 4 7 14 28 379 758 1516 2653 5306 10612 4914551 9829102 19658204 34401857 68803714 137607428 1862614829 3725229658 7450459316 13038303803 26076607606 52153215212