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164027915 = 5294212687
BaseRepresentation
bin10011100011011…
…01111000001011
3102102122110222222
421301231320023
5313442343130
624135404255
74031133332
oct1161557013
9372573888
10164027915
1184653667
1246b2368b
1327ca0c4c
1417adad19
15e600ce5
hex9c6de0b

164027915 has 16 divisors (see below), whose sum is σ = 204180480. Its totient is φ = 126349440.

The previous prime is 164027911. The next prime is 164027933. The reversal of 164027915 is 519720461.

It is not a de Polignac number, because 164027915 - 22 = 164027911 is a prime.

It is not an unprimeable number, because it can be changed into a prime (164027911) 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, 59702 + ... + 62388.

It is an arithmetic number, because the mean of its divisors is an integer number (12761280).

Almost surely, 2164027915 is an apocalyptic number.

164027915 is a deficient number, since it is larger than the sum of its proper divisors (40152565).

164027915 is a wasteful number, since it uses less digits than its factorization.

164027915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3142.

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 164027915 is about 12807.3383261316. The cubic root of 164027915 is about 547.4014223110.

The spelling of 164027915 in words is "one hundred sixty-four million, twenty-seven thousand, nine hundred fifteen".

Divisors: 1 5 29 145 421 2105 2687 12209 13435 61045 77923 389615 1131227 5656135 32805583 164027915