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8672151917 = 112135513129
BaseRepresentation
bin10000001001110011…
…01000100101101101
3211101101011221222202
420010321220211231
5120230032330132
63552310151245
7424622034512
oct100471504555
924341157882
108672151917
113750227100
121820352525
13a82881b50
145c3a73309
1535b51b762
hex204e6896d

8672151917 has 12 divisors (see below), whose sum is σ = 10265448060. Its totient is φ = 7277328960.

The previous prime is 8672151913. The next prime is 8672151919. The reversal of 8672151917 is 7191512768.

It can be written as a sum of positive squares in 2 ways, for example, as 5986735876 + 2685416041 = 77374^2 + 51821^2 .

It is not a de Polignac number, because 8672151917 - 22 = 8672151913 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8672151913) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2754992 + ... + 2758137.

It is an arithmetic number, because the mean of its divisors is an integer number (855454005).

Almost surely, 28672151917 is an apocalyptic number.

It is an amenable number.

8672151917 is a deficient number, since it is larger than the sum of its proper divisors (1593296143).

8672151917 is a wasteful number, since it uses less digits than its factorization.

8672151917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5513164 (or 5513153 counting only the distinct ones).

The product of its digits is 211680, while the sum is 47.

The square root of 8672151917 is about 93124.3894852471. The cubic root of 8672151917 is about 2054.5133095215.

The spelling of 8672151917 in words is "eight billion, six hundred seventy-two million, one hundred fifty-one thousand, nine hundred seventeen".

Divisors: 1 11 13 121 143 1573 5513129 60644419 71670677 667088609 788377447 8672151917