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164484155 = 51123130027
BaseRepresentation
bin10011100110111…
…01010000111011
3102110111122211202
421303131100323
5314101443110
624153244415
74035043433
oct1163352073
9373448752
10164484155
1184935420
124710370b
1328100804
1417bb92c3
15e6910a5
hex9cdd43b

164484155 has 16 divisors (see below), whose sum is σ = 224688384. Its totient is φ = 114422880.

The previous prime is 164484137. The next prime is 164484157. The reversal of 164484155 is 551484461.

It is not a de Polignac number, because 164484155 - 210 = 164483131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164484157) 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, 63749 + ... + 66278.

It is an arithmetic number, because the mean of its divisors is an integer number (14043024).

Almost surely, 2164484155 is an apocalyptic number.

164484155 is a deficient number, since it is larger than the sum of its proper divisors (60204229).

164484155 is a wasteful number, since it uses less digits than its factorization.

164484155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130066.

The product of its digits is 76800, while the sum is 38.

The square root of 164484155 is about 12825.1376210940. The cubic root of 164484155 is about 547.9084807739.

The spelling of 164484155 in words is "one hundred sixty-four million, four hundred eighty-four thousand, one hundred fifty-five".

Divisors: 1 5 11 23 55 115 253 1265 130027 650135 1430297 2990621 7151485 14953105 32896831 164484155