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164145260 = 22545717959
BaseRepresentation
bin10011100100010…
…10100001101100
3102102212102222002
421302022201230
5314010122020
624142111432
74032132416
oct1162124154
9372772862
10164145260
1184723844
1246b7b578
1328012496
1417b2b9b6
15e625975
hex9c8a86c

164145260 has 24 divisors (see below), whose sum is σ = 345478560. Its totient is φ = 65510784.

The previous prime is 164145253. The next prime is 164145299. The reversal of 164145260 is 62541461.

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, 161 + ... + 18119.

It is an arithmetic number, because the mean of its divisors is an integer number (14394940).

Almost surely, 2164145260 is an apocalyptic number.

164145260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

164145260 is an abundant number, since it is smaller than the sum of its proper divisors (181333300).

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

164145260 is a wasteful number, since it uses less digits than its factorization.

164145260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18425 (or 18423 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 164145260 is about 12811.9186697387. The cubic root of 164145260 is about 547.5319275530.

The spelling of 164145260 in words is "one hundred sixty-four million, one hundred forty-five thousand, two hundred sixty".

Divisors: 1 2 4 5 10 20 457 914 1828 2285 4570 9140 17959 35918 71836 89795 179590 359180 8207263 16414526 32829052 41036315 82072630 164145260