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164129361 = 31123791193
BaseRepresentation
bin10011100100001…
…10101001010001
3102102211122011020
421302012221101
5314004114421
624141510053
74032035154
oct1162065121
9372748136
10164129361
1184712900
1246b72329
1328008186
1417b25c9b
15e620dc6
hex9c86a51

164129361 has 24 divisors (see below), whose sum is σ = 241379040. Its totient is φ = 99126720.

The previous prime is 164129359. The next prime is 164129377. The reversal of 164129361 is 163921461.

It is not a de Polignac number, because 164129361 - 21 = 164129359 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (164129461) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 136981 + ... + 138173.

It is an arithmetic number, because the mean of its divisors is an integer number (10057460).

Almost surely, 2164129361 is an apocalyptic number.

164129361 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

164129361 is a deficient number, since it is larger than the sum of its proper divisors (77249679).

164129361 is a wasteful number, since it uses less digits than its factorization.

164129361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1597 (or 1586 counting only the distinct ones).

The product of its digits is 7776, while the sum is 33.

The square root of 164129361 is about 12811.2981777804. The cubic root of 164129361 is about 547.5142491235.

The spelling of 164129361 in words is "one hundred sixty-four million, one hundred twenty-nine thousand, three hundred sixty-one".

Divisors: 1 3 11 33 121 363 379 1137 1193 3579 4169 12507 13123 39369 45859 137577 144353 433059 452147 1356441 4973617 14920851 54709787 164129361