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8690732331 = 3157173106657
BaseRepresentation
bin10000001100000001…
…00000110100101011
3211102200010221112020
420012000200310223
5120244311413311
63554212315523
7425236002021
oct100600406453
924380127466
108690732331
11375a767916
121826612ba3
13a86689088
145c630c711
1535ce8bc06
hex206020d2b

8690732331 has 16 divisors (see below), whose sum is σ = 11728966944. Its totient is φ = 5723587584.

The previous prime is 8690732329. The next prime is 8690732381. The reversal of 8690732331 is 1332370968.

It is a happy number.

8690732331 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 8690732331 - 21 = 8690732329 is a prime.

It is a super-2 number, since 2×86907323312 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8690732381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28155 + ... + 134811.

It is an arithmetic number, because the mean of its divisors is an integer number (733060434).

Almost surely, 28690732331 is an apocalyptic number.

8690732331 is a deficient number, since it is larger than the sum of its proper divisors (3038234613).

8690732331 is a wasteful number, since it uses less digits than its factorization.

8690732331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106990.

The product of its (nonzero) digits is 163296, while the sum is 42.

The square root of 8690732331 is about 93224.0973729432. The cubic root of 8690732331 is about 2055.9795537232.

The spelling of 8690732331 in words is "eight billion, six hundred ninety million, seven hundred thirty-two thousand, three hundred thirty-one".

Divisors: 1 3 157 173 471 519 27161 81483 106657 319971 16745149 18451661 50235447 55354983 2896910777 8690732331