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8130356 = 2213156353
BaseRepresentation
bin11111000000111100110100
3120022001202022
4133000330310
54040132411
6450132312
7126051443
oct37007464
916261668
108130356
114653503
122881098
1318b8880
141118d5a
15aa8edb
hex7c0f34

8130356 has 12 divisors (see below), whose sum is σ = 15322692. Its totient is φ = 3752448.

The previous prime is 8130337. The next prime is 8130361. The reversal of 8130356 is 6530318.

It can be written as a sum of positive squares in 2 ways, for example, as 401956 + 7728400 = 634^2 + 2780^2 .

It is a super-2 number, since 2×81303562 = 132205377373472, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78125 + ... + 78228.

It is an arithmetic number, because the mean of its divisors is an integer number (1276891).

Almost surely, 28130356 is an apocalyptic number.

It is an amenable number.

8130356 is a deficient number, since it is larger than the sum of its proper divisors (7192336).

8130356 is a wasteful number, since it uses less digits than its factorization.

8130356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156370 (or 156368 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 8130356 is about 2851.3779125188. The cubic root of 8130356 is about 201.0804526001.

The spelling of 8130356 in words is "eight million, one hundred thirty thousand, three hundred fifty-six".

Divisors: 1 2 4 13 26 52 156353 312706 625412 2032589 4065178 8130356