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164124665 = 5237120101
BaseRepresentation
bin10011100100001…
…01011111111001
3102102211101201022
421302011133321
5314003442130
624141432225
74032015365
oct1162053771
9372741638
10164124665
118470a321
1246b6b675
1328005cb3
1417b242a5
15e61e7e5
hex9c857f9

164124665 has 16 divisors (see below), whose sum is σ = 208417536. Its totient is φ = 123816000.

The previous prime is 164124661. The next prime is 164124673. The reversal of 164124665 is 566421461.

It is not a de Polignac number, because 164124665 - 22 = 164124661 is a prime.

It is a super-2 number, since 2×1641246652 = 53873811322724450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (164124661) 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, 1886 + ... + 18215.

It is an arithmetic number, because the mean of its divisors is an integer number (13026096).

Almost surely, 2164124665 is an apocalyptic number.

It is an amenable number.

164124665 is a deficient number, since it is larger than the sum of its proper divisors (44292871).

164124665 is a wasteful number, since it uses less digits than its factorization.

164124665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20200.

The product of its digits is 34560, while the sum is 35.

The square root of 164124665 is about 12811.1149007415. The cubic root of 164124665 is about 547.5090273249.

The spelling of 164124665 in words is "one hundred sixty-four million, one hundred twenty-four thousand, six hundred sixty-five".

Divisors: 1 5 23 71 115 355 1633 8165 20101 100505 462323 1427171 2311615 7135855 32824933 164124665