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53112053502 = 23221269138731
BaseRepresentation
bin110001011101101110…
…011001111011111110
312002002110200212110200
4301131232121323332
51332233141203002
640222131344330
73560111002014
oct613556317376
9162073625420
1053112053502
11205854079a2
12a3631520a6
1350157281c1
1427dbb848b4
1515acbbeb1c
hexc5db99efe

53112053502 has 24 divisors (see below), whose sum is σ = 115082355960. Its totient is φ = 17703057840.

The previous prime is 53112053473. The next prime is 53112053543. The reversal of 53112053502 is 20535021135.

It is a happy number.

53112053502 is a `hidden beast` number, since 5 + 3 + 1 + 120 + 535 + 0 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 313477 + ... + 452207.

It is an arithmetic number, because the mean of its divisors is an integer number (4795098165).

Almost surely, 253112053502 is an apocalyptic number.

53112053502 is an abundant number, since it is smaller than the sum of its proper divisors (61970302458).

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

53112053502 is a wasteful number, since it uses less digits than its factorization.

53112053502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160008 (or 160005 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 27.

Adding to 53112053502 its reverse (20535021135), we get a palindrome (73647074637).

The spelling of 53112053502 in words is "fifty-three billion, one hundred twelve million, fifty-three thousand, five hundred two".

Divisors: 1 2 3 6 9 18 21269 42538 63807 127614 138731 191421 277462 382842 416193 832386 1248579 2497158 2950669639 5901339278 8852008917 17704017834 26556026751 53112053502