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164157873 = 31124120641
BaseRepresentation
bin10011100100011…
…01100110110001
3102102220002021020
421302031212301
5314011022443
624142250053
74032214245
oct1162154661
9372802236
10164157873
1184732270
1246b86929
1328018149
1417b32425
15e629583
hex9c8d9b1

164157873 has 16 divisors (see below), whose sum is σ = 239777472. Its totient is φ = 99072000.

The previous prime is 164157871. The next prime is 164157881. The reversal of 164157873 is 378751461.

164157873 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 164157873 - 21 = 164157871 is a prime.

It is not an unprimeable number, because it can be changed into a prime (164157871) 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, 2368 + ... + 18273.

It is an arithmetic number, because the mean of its divisors is an integer number (14986092).

Almost surely, 2164157873 is an apocalyptic number.

It is an amenable number.

164157873 is a deficient number, since it is larger than the sum of its proper divisors (75619599).

164157873 is a wasteful number, since it uses less digits than its factorization.

164157873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20896.

The product of its digits is 141120, while the sum is 42.

The square root of 164157873 is about 12812.4108972511. The cubic root of 164157873 is about 547.5459513985.

The spelling of 164157873 in words is "one hundred sixty-four million, one hundred fifty-seven thousand, eight hundred seventy-three".

Divisors: 1 3 11 33 241 723 2651 7953 20641 61923 227051 681153 4974481 14923443 54719291 164157873