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164379580 = 22544318553
BaseRepresentation
bin10011100110000…
…11101110111100
3102110022100101121
421303003232330
5314040121310
624151120324
74034126521
oct1163035674
9373270347
10164379580
11848738a2
12470730a4
1328095031
1417b8d148
15e6700da
hex9cc3bbc

164379580 has 24 divisors (see below), whose sum is σ = 345994992. Its totient is φ = 65599872.

The previous prime is 164379571. The next prime is 164379581. The reversal of 164379580 is 85973461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164379581) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 417 + ... + 18136.

It is an arithmetic number, because the mean of its divisors is an integer number (14416458).

Almost surely, 2164379580 is an apocalyptic number.

164379580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

164379580 is an abundant number, since it is smaller than the sum of its proper divisors (181615412).

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

164379580 is a wasteful number, since it uses less digits than its factorization.

164379580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19005 (or 19003 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 43.

The square root of 164379580 is about 12821.0600185788. The cubic root of 164379580 is about 547.7923405567.

The spelling of 164379580 in words is "one hundred sixty-four million, three hundred seventy-nine thousand, five hundred eighty".

Divisors: 1 2 4 5 10 20 443 886 1772 2215 4430 8860 18553 37106 74212 92765 185530 371060 8218979 16437958 32875916 41094895 82189790 164379580