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13752685805 = 529215344053
BaseRepresentation
bin11001100111011100…
…10101010011101101
31022111110002211021112
430303232111103231
5211131141421210
610152355441405
7664542620615
oct146356252355
938443084245
1013752685805
11591803a441
1227b98b6265
1313b22c9b11
149466d9a45
1555757ed05
hex333b954ed

13752685805 has 16 divisors (see below), whose sum is σ = 17080616880. Its totient is φ = 10617589248.

The previous prime is 13752685799. The next prime is 13752685819. The reversal of 13752685805 is 50858625731.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 522625321 + 13230060484 = 22861^2 + 115022^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13752685805 is a prime.

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, 290159 + ... + 334211.

It is an arithmetic number, because the mean of its divisors is an integer number (1067538555).

Almost surely, 213752685805 is an apocalyptic number.

It is an amenable number.

13752685805 is a deficient number, since it is larger than the sum of its proper divisors (3327931075).

13752685805 is a wasteful number, since it uses less digits than its factorization.

13752685805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46240.

The product of its (nonzero) digits is 2016000, while the sum is 50.

The spelling of 13752685805 in words is "thirteen billion, seven hundred fifty-two million, six hundred eighty-five thousand, eight hundred five".

Divisors: 1 5 29 145 2153 10765 44053 62437 220265 312185 1277537 6387685 94846109 474230545 2750537161 13752685805