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164032580 = 22512016829
BaseRepresentation
bin10011100011011…
…11000001000100
3102102122201101202
421301233001010
5313443020310
624135442032
74031153045
oct1161570104
9372581352
10164032580
1184657118
1246b26318
1327ca30ca
1417adc8cc
15e6023a5
hex9c6f044

164032580 has 24 divisors (see below), whose sum is σ = 344805720. Its totient is φ = 65548800.

The previous prime is 164032579. The next prime is 164032637. The reversal of 164032580 is 85230461.

It can be written as a sum of positive squares in 4 ways, for example, as 141376 + 163891204 = 376^2 + 12802^2 .

It is a super-3 number, since 3×1640325803 (a number of 26 digits) contains 333 as substring.

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, 20606 + ... + 27434.

It is an arithmetic number, because the mean of its divisors is an integer number (14366905).

Almost surely, 2164032580 is an apocalyptic number.

164032580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

164032580 is an abundant number, since it is smaller than the sum of its proper divisors (180773140).

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

164032580 is a wasteful number, since it uses less digits than its factorization.

164032580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8039 (or 8037 counting only the distinct ones).

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

The square root of 164032580 is about 12807.5204469874. The cubic root of 164032580 is about 547.4066116786.

The spelling of 164032580 in words is "one hundred sixty-four million, thirty-two thousand, five hundred eighty".

Divisors: 1 2 4 5 10 20 1201 2402 4804 6005 6829 12010 13658 24020 27316 34145 68290 136580 8201629 16403258 32806516 41008145 82016290 164032580