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164070015 = 3542125981
BaseRepresentation
bin10011100011110…
…00001001111111
3102102201121202020
421301320021333
5314000220030
624140331223
74031400144
oct1161701177
9372647666
10164070015
118468225a
1246b43b13
1327cb7165
1417b0c3cb
15e60d510
hex9c7827f

164070015 has 16 divisors (see below), whose sum is σ = 263145696. Its totient is φ = 87292800.

The previous prime is 164069993. The next prime is 164070019. The reversal of 164070015 is 510070461.

It is not a de Polignac number, because 164070015 - 210 = 164068991 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164070019) 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, 6676 + ... + 19305.

It is an arithmetic number, because the mean of its divisors is an integer number (16446606).

Almost surely, 2164070015 is an apocalyptic number.

164070015 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

164070015 is a deficient number, since it is larger than the sum of its proper divisors (99075681).

164070015 is a wasteful number, since it uses less digits than its factorization.

164070015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26410.

The product of its (nonzero) digits is 840, while the sum is 24.

The square root of 164070015 is about 12808.9818096522. The cubic root of 164070015 is about 547.4482509835.

The spelling of 164070015 in words is "one hundred sixty-four million, seventy thousand, fifteen".

Divisors: 1 3 5 15 421 1263 2105 6315 25981 77943 129905 389715 10938001 32814003 54690005 164070015