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164836551 = 31129172243
BaseRepresentation
bin10011101001100…
…11010011000111
3102111011120020110
421310303103013
5314144232201
624205004103
74041042015
oct1164632307
9374146213
10164836551
1185056160
1247253633
13281c5029
1417c6b8b5
15e7106d6
hex9d334c7

164836551 has 16 divisors (see below), whose sum is σ = 248031360. Its totient is φ = 96455520.

The previous prime is 164836541. The next prime is 164836577. The reversal of 164836551 is 155638461.

It is not a de Polignac number, because 164836551 - 26 = 164836487 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164836541) 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, 85165 + ... + 87078.

It is an arithmetic number, because the mean of its divisors is an integer number (15501960).

Almost surely, 2164836551 is an apocalyptic number.

164836551 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

164836551 is a deficient number, since it is larger than the sum of its proper divisors (83194809).

164836551 is a wasteful number, since it uses less digits than its factorization.

164836551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172286.

The product of its digits is 86400, while the sum is 39.

The square root of 164836551 is about 12838.8687585784. The cubic root of 164836551 is about 548.2994870960.

The spelling of 164836551 in words is "one hundred sixty-four million, eight hundred thirty-six thousand, five hundred fifty-one".

Divisors: 1 3 11 29 33 87 319 957 172243 516729 1894673 4995047 5684019 14985141 54945517 164836551