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165228060 = 223510312671
BaseRepresentation
bin10011101100100…
…10111000011100
3102111220110021210
421312102320130
5314244244220
624221224420
74044262314
oct1166227034
9374813253
10165228060
11852a3318
1247402110
13283012aa
1417d30444
15e78b6e0
hex9d92e1c

165228060 has 48 divisors (see below), whose sum is σ = 463260672. Its totient is φ = 44001600.

The previous prime is 165228031. The next prime is 165228061. The reversal of 165228060 is 60822561.

165228060 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1652280602 = 54600623622727200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165228061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60525 + ... + 63195.

It is an arithmetic number, because the mean of its divisors is an integer number (9651264).

Almost surely, 2165228060 is an apocalyptic number.

165228060 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

165228060 is an abundant number, since it is smaller than the sum of its proper divisors (298032612).

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

165228060 is a wasteful number, since it uses less digits than its factorization.

165228060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3714 (or 3712 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 165228060 is about 12854.1067367593. The cubic root of 165228060 is about 548.7332389032.

The spelling of 165228060 in words is "one hundred sixty-five million, two hundred twenty-eight thousand, sixty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 1031 2062 2671 3093 4124 5155 5342 6186 8013 10310 10684 12372 13355 15465 16026 20620 26710 30930 32052 40065 53420 61860 80130 160260 2753801 5507602 8261403 11015204 13769005 16522806 27538010 33045612 41307015 55076020 82614030 165228060