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164311660 = 22553379409
BaseRepresentation
bin10011100101100…
…11001001101100
3102110011220020001
421302303021230
5314030433120
624145434044
74033424512
oct1162631154
9373156201
10164311660
1184827867
124703b924
1328070146
1417b724b2
15e659e0a
hex9cb326c

164311660 has 48 divisors (see below), whose sum is σ = 353354400. Its totient is φ = 64157184.

The previous prime is 164311633. The next prime is 164311703. The reversal of 164311660 is 66113461.

164311660 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 2×1643116602 = 53996643223911200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 401536 + ... + 401944.

It is an arithmetic number, because the mean of its divisors is an integer number (7361550).

Almost surely, 2164311660 is an apocalyptic number.

164311660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

164311660 is an abundant number, since it is smaller than the sum of its proper divisors (189042740).

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

164311660 is a wasteful number, since it uses less digits than its factorization.

164311660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 850 (or 848 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 164311660 is about 12818.4109779645. The cubic root of 164311660 is about 547.7168827224.

The spelling of 164311660 in words is "one hundred sixty-four million, three hundred eleven thousand, six hundred sixty".

Divisors: 1 2 4 5 10 20 53 106 212 265 379 409 530 758 818 1060 1516 1636 1895 2045 3790 4090 7580 8180 20087 21677 40174 43354 80348 86708 100435 108385 155011 200870 216770 310022 401740 433540 620044 775055 1550110 3100220 8215583 16431166 32862332 41077915 82155830 164311660