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164458434 = 2374438839
BaseRepresentation
bin10011100110101…
…10111111000010
3102110110100120010
421303112333002
5314100132214
624152525350
74034605440
oct1163267702
9373410503
10164458434
1184918068
12470b0856
13280c1baa
1417badb90
15e688659
hex9cd6fc2

164458434 has 32 divisors (see below), whose sum is σ = 376796160. Its totient is φ = 46876752.

The previous prime is 164458397. The next prime is 164458453. The reversal of 164458434 is 434854461.

It is a junction number, because it is equal to n+sod(n) for n = 164458392 and 164458401.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14187 + ... + 23025.

It is an arithmetic number, because the mean of its divisors is an integer number (11774880).

Almost surely, 2164458434 is an apocalyptic number.

164458434 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

164458434 is an abundant number, since it is smaller than the sum of its proper divisors (212337726).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

164458434 is a wasteful number, since it uses less digits than its factorization.

164458434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9294.

The product of its digits is 184320, while the sum is 39.

The square root of 164458434 is about 12824.1348246188. The cubic root of 164458434 is about 547.8799197885.

The spelling of 164458434 in words is "one hundred sixty-four million, four hundred fifty-eight thousand, four hundred thirty-four".

Divisors: 1 2 3 6 7 14 21 42 443 886 1329 2658 3101 6202 8839 9303 17678 18606 26517 53034 61873 123746 185619 371238 3915677 7831354 11747031 23494062 27409739 54819478 82229217 164458434