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9869139707 = 712511112691
BaseRepresentation
bin10010011000011111…
…10001111011111011
3221110210112020112212
421030033301323323
5130202444432312
64311145525335
7466365206030
oct111417617373
927423466485
109869139707
114204965809
121ab51a384b
13c1386024b
14698a1b387
153cb65e822
hex24c3f1efb

9869139707 has 8 divisors (see below), whose sum is σ = 11280018432. Its totient is φ = 8458511400.

The previous prime is 9869139689. The next prime is 9869139739. The reversal of 9869139707 is 7079319689.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 9869139707 - 28 = 9869139451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9869139767) 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, 31232 + ... + 143922.

It is an arithmetic number, because the mean of its divisors is an integer number (1410002304).

Almost surely, 29869139707 is an apocalyptic number.

9869139707 is a deficient number, since it is larger than the sum of its proper divisors (1410878725).

9869139707 is a wasteful number, since it uses less digits than its factorization.

9869139707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125209.

The product of its (nonzero) digits is 5143824, while the sum is 59.

The square root of 9869139707 is about 99343.5438616924. The cubic root of 9869139707 is about 2144.9957315223.

The spelling of 9869139707 in words is "nine billion, eight hundred sixty-nine million, one hundred thirty-nine thousand, seven hundred seven".

Divisors: 1 7 12511 87577 112691 788837 1409877101 9869139707