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2164157375 = 53178911443
BaseRepresentation
bin1000000011111110…
…0110101110111111
312120211020120210212
42000333212232333
513413011014000
6554425223035
7104426014502
oct20077465677
95524216725
102164157375
11a10679516
12504931a7b
132864921c3
141675cb139
15c9edbc35
hex80fe6bbf

2164157375 has 32 divisors (see below), whose sum is σ = 2892127680. Its totient is φ = 1611033600.

The previous prime is 2164157299. The next prime is 2164157383. The reversal of 2164157375 is 5737514612.

It is not a de Polignac number, because 2164157375 - 28 = 2164157119 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 183404 + ... + 194846.

It is an arithmetic number, because the mean of its divisors is an integer number (90378990).

Almost surely, 22164157375 is an apocalyptic number.

2164157375 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2164157375 is a deficient number, since it is larger than the sum of its proper divisors (727970305).

2164157375 is a wasteful number, since it uses less digits than its factorization.

2164157375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11564 (or 11554 counting only the distinct ones).

The product of its digits is 176400, while the sum is 41.

The square root of 2164157375 is about 46520.5048876299. The cubic root of 2164157375 is about 1293.4896151899.

The spelling of 2164157375 in words is "two billion, one hundred sixty-four million, one hundred fifty-seven thousand, three hundred seventy-five".

Divisors: 1 5 17 25 85 89 125 425 445 1513 2125 2225 7565 11125 11443 37825 57215 189125 194531 286075 972655 1018427 1430375 4863275 5092135 17313259 24316375 25460675 86566295 127303375 432831475 2164157375