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53138017582 = 21313115601297
BaseRepresentation
bin110001011111010001…
…011100110100101110
312002011021112222111021
4301133101130310232
51332311313030312
640224500044354
73560544461026
oct613721346456
9162137488437
1053138017582
1120599031111
12a36b9936ba
13501ac19170
1428013c2a86
1515b00ecc07
hexc5f45cd2e

53138017582 has 16 divisors (see below), whose sum is σ = 86493596112. Its totient is φ = 24338021760.

The previous prime is 53138017579. The next prime is 53138017589. The reversal of 53138017582 is 28571083135.

It is a super-2 number, since 2×531380175822 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53138017589) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7797243 + ... + 7804054.

It is an arithmetic number, because the mean of its divisors is an integer number (5405849757).

Almost surely, 253138017582 is an apocalyptic number.

53138017582 is a deficient number, since it is larger than the sum of its proper divisors (33355578530).

53138017582 is a wasteful number, since it uses less digits than its factorization.

53138017582 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15601443.

The product of its (nonzero) digits is 201600, while the sum is 43.

The spelling of 53138017582 in words is "fifty-three billion, one hundred thirty-eight million, seventeen thousand, five hundred eighty-two".

Divisors: 1 2 13 26 131 262 1703 3406 15601297 31202594 202816861 405633722 2043769907 4087539814 26569008791 53138017582