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9131390079 = 37434828099
BaseRepresentation
bin10001000000100010…
…11111010001111111
3212120101022200022120
420200101133101333
5122200113440304
64110033214023
7442166351340
oct104021372177
925511280276
109131390079
113966482579
12192a101313
13b26a646c6
14628a580c7
153869d20d9
hex22045f47f

9131390079 has 8 divisors (see below), whose sum is σ = 13914499200. Its totient is φ = 5217937176.

The previous prime is 9131390027. The next prime is 9131390083. The reversal of 9131390079 is 9700931319.

9131390079 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 9131390079 - 29 = 9131389567 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9131390079.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9131390179) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 217414029 + ... + 217414070.

It is an arithmetic number, because the mean of its divisors is an integer number (1739312400).

Almost surely, 29131390079 is an apocalyptic number.

9131390079 is a deficient number, since it is larger than the sum of its proper divisors (4783109121).

9131390079 is a wasteful number, since it uses less digits than its factorization.

9131390079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434828109.

The product of its (nonzero) digits is 45927, while the sum is 42.

The square root of 9131390079 is about 95558.3072212981. The cubic root of 9131390079 is about 2090.1572708129.

The spelling of 9131390079 in words is "nine billion, one hundred thirty-one million, three hundred ninety thousand, seventy-nine".

Divisors: 1 3 7 21 434828099 1304484297 3043796693 9131390079