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8125164 = 2233233271
BaseRepresentation
bin11110111111101011101100
3120021210122000
4132333223230
54040001124
6450052300
7126030345
oct36775354
916253560
108125164
11464a613
12287a090
1318b63b8
1411170cc
15aa76c9
hex7bfaec

8125164 has 48 divisors (see below), whose sum is σ = 21987840. Its totient is φ = 2589840.

The previous prime is 8125153. The next prime is 8125177. The reversal of 8125164 is 4615218.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 849 + ... + 4119.

It is an arithmetic number, because the mean of its divisors is an integer number (458080).

Almost surely, 28125164 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8125164, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10993920).

8125164 is an abundant number, since it is smaller than the sum of its proper divisors (13862676).

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

8125164 is a wasteful number, since it uses less digits than its factorization.

8125164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3307 (or 3299 counting only the distinct ones).

The product of its digits is 1920, while the sum is 27.

The square root of 8125164 is about 2850.4673301057. The cubic root of 8125164 is about 201.0376405337.

The spelling of 8125164 in words is "eight million, one hundred twenty-five thousand, one hundred sixty-four".

Divisors: 1 2 3 4 6 9 12 18 23 27 36 46 54 69 92 108 138 207 276 414 621 828 1242 2484 3271 6542 9813 13084 19626 29439 39252 58878 75233 88317 117756 150466 176634 225699 300932 353268 451398 677097 902796 1354194 2031291 2708388 4062582 8125164