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8712299519 = 721117950813
BaseRepresentation
bin10000001110100101…
…10010001111111111
3211111011201200010222
420013102302033333
5120320322041034
64000302451555
7425620216100
oct100722621777
924434650128
108712299519
113770958640
121831893bbb
13a8ac9a921
145c91243a7
1535ecec12e
hex2074b23ff

8712299519 has 24 divisors (see below), whose sum is σ = 11706421968. Its totient is φ = 6389456640.

The previous prime is 8712299447. The next prime is 8712299521. The reversal of 8712299519 is 9159922178.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2k-8712299519 is a prime.

It is a super-2 number, since 2×87122995192 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8712299119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 466244 + ... + 484569.

It is an arithmetic number, because the mean of its divisors is an integer number (487767582).

Almost surely, 28712299519 is an apocalyptic number.

8712299519 is a deficient number, since it is larger than the sum of its proper divisors (2994122449).

8712299519 is a wasteful number, since it uses less digits than its factorization.

8712299519 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 950855 (or 950848 counting only the distinct ones).

The product of its digits is 816480, while the sum is 53.

The square root of 8712299519 is about 93339.6995870460. The cubic root of 8712299519 is about 2057.6788761145.

The spelling of 8712299519 in words is "eight billion, seven hundred twelve million, two hundred ninety-nine thousand, five hundred nineteen".

Divisors: 1 7 11 17 49 77 119 187 539 833 1309 9163 950813 6655691 10458943 16163821 46589837 73212601 113146747 177802031 512488207 792027229 1244614217 8712299519