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13201872550 = 252264037451
BaseRepresentation
bin11000100101110010…
…01001011010100110
31021002001122121112121
430102321021122212
5204014134410200
610022001540154
7645104031226
oct142271113246
937061577477
1013201872550
115665127279
12268534465a
131325163409
148d34b8086
1552402ae1a
hex312e496a6

13201872550 has 12 divisors (see below), whose sum is σ = 24555483036. Its totient is φ = 5280749000.

The previous prime is 13201872547. The next prime is 13201872559. The reversal of 13201872550 is 5527810231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13201872559) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 132018676 + ... + 132018775.

It is an arithmetic number, because the mean of its divisors is an integer number (2046290253).

Almost surely, 213201872550 is an apocalyptic number.

13201872550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13201872550 is a deficient number, since it is larger than the sum of its proper divisors (11353610486).

13201872550 is a wasteful number, since it uses less digits than its factorization.

13201872550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264037463 (or 264037458 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 34.

The spelling of 13201872550 in words is "thirteen billion, two hundred one million, eight hundred seventy-two thousand, five hundred fifty".

Divisors: 1 2 5 10 25 50 264037451 528074902 1320187255 2640374510 6600936275 13201872550