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8306985271 = 132149329891
BaseRepresentation
bin1111011110010001…
…01000100100110111
3210102221001120112011
413233020220210313
5114003042012041
63452143305051
7412566131644
oct75710504467
923387046464
108306985271
113583092a92
121739bab187
13a25018500
1458b378dcb
15339438e81
hex1ef228937

8306985271 has 12 divisors (see below), whose sum is σ = 9055535400. Its totient is φ = 7616500320.

The previous prime is 8306985223. The next prime is 8306985319. The reversal of 8306985271 is 1725896038.

It is an interprime number because it is at equal distance from previous prime (8306985223) and next prime (8306985319).

It is not a de Polignac number, because 8306985271 - 213 = 8306977079 is a prime.

It is a super-2 number, since 2×83069852712 (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 (8306985221) 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, 139765 + ... + 190126.

It is an arithmetic number, because the mean of its divisors is an integer number (754627950).

Almost surely, 28306985271 is an apocalyptic number.

8306985271 is a deficient number, since it is larger than the sum of its proper divisors (748550129).

8306985271 is a wasteful number, since it uses less digits than its factorization.

8306985271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330066 (or 330053 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 49.

The square root of 8306985271 is about 91142.6643839207. The cubic root of 8306985271 is about 2025.2616861225.

The spelling of 8306985271 in words is "eight billion, three hundred six million, nine hundred eighty-five thousand, two hundred seventy-one".

Divisors: 1 13 149 169 1937 25181 329891 4288583 49153759 55751579 638998867 8306985271