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2157147710 = 251931366239
BaseRepresentation
bin1000000010010011…
…0111011000111110
312120100001110100122
42000210313120332
513404212211320
6554015054542
7104312311244
oct20044673076
95510043318
102157147710
11a07721003
12502511452
13284ba9783
141666c4794
15c95a4d25
hex8093763e

2157147710 has 32 divisors (see below), whose sum is σ = 4219084800. Its totient is φ = 791074080.

The previous prime is 2157147703. The next prime is 2157147743. The reversal of 2157147710 is 177417512.

It is a congruent number.

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, 177230 + ... + 189009.

It is an arithmetic number, because the mean of its divisors is an integer number (131846400).

Almost surely, 22157147710 is an apocalyptic number.

2157147710 is a deficient number, since it is larger than the sum of its proper divisors (2061937090).

2157147710 is a wasteful number, since it uses less digits than its factorization.

2157147710 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366296.

The product of its (nonzero) digits is 13720, while the sum is 35.

The square root of 2157147710 is about 46445.1042629899. The cubic root of 2157147710 is about 1292.0915751882.

The spelling of 2157147710 in words is "two billion, one hundred fifty-seven million, one hundred forty-seven thousand, seven hundred ten".

Divisors: 1 2 5 10 19 31 38 62 95 155 190 310 589 1178 2945 5890 366239 732478 1831195 3662390 6958541 11353409 13917082 22706818 34792705 56767045 69585410 113534090 215714771 431429542 1078573855 2157147710