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8130516 = 223677543
BaseRepresentation
bin11111000000111111010100
3120022001222020
4133000333110
54040134031
6450133140
7126052062
oct37007724
916261866
108130516
114653639
1228811b0
1318b8974
141119032
15aa9096
hex7c0fd4

8130516 has 12 divisors (see below), whose sum is σ = 18971232. Its totient is φ = 2710168.

The previous prime is 8130509. The next prime is 8130547. The reversal of 8130516 is 6150318.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×81305162 = 132210580852512, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 338760 + ... + 338783.

It is an arithmetic number, because the mean of its divisors is an integer number (1580936).

Almost surely, 28130516 is an apocalyptic number.

It is an amenable number.

8130516 is an abundant number, since it is smaller than the sum of its proper divisors (10840716).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8130516 is a wasteful number, since it uses less digits than its factorization.

8130516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 677550 (or 677548 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 8130516 is about 2851.4059689914. The cubic root of 8130516 is about 201.0817716346.

It can be divided in two parts, 8130 and 516, that added together give a triangular number (8646 = T131).

The spelling of 8130516 in words is "eight million, one hundred thirty thousand, five hundred sixteen".

Divisors: 1 2 3 4 6 12 677543 1355086 2032629 2710172 4065258 8130516