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8133156 = 223375307
BaseRepresentation
bin11111000001101000100100
3120022012121000
4133001220210
54040230111
6450153300
7126062553
oct37015044
916265530
108133156
114655619
122882830
1318b9c25
141119d9a
15aa9c56
hex7c1a24

8133156 has 24 divisors (see below), whose sum is σ = 21086240. Its totient is φ = 2711016.

The previous prime is 8133143. The next prime is 8133163. The reversal of 8133156 is 6513318.

It is a super-2 number, since 2×81331562 = 132296453040672, which contains 22 as substring.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37546 + ... + 37761.

Almost surely, 28133156 is an apocalyptic number.

It is an amenable number.

8133156 is an abundant number, since it is smaller than the sum of its proper divisors (12953084).

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

8133156 is a wasteful number, since it uses less digits than its factorization.

8133156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75320 (or 75312 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

The square root of 8133156 is about 2851.8688609401. The cubic root of 8133156 is about 201.1035332068.

It can be divided in two parts, 813 and 3156, that added together give a square (3969 = 632).

The spelling of 8133156 in words is "eight million, one hundred thirty-three thousand, one hundred fifty-six".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 108 75307 150614 225921 301228 451842 677763 903684 1355526 2033289 2711052 4066578 8133156