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2137829768 = 23267228721
BaseRepresentation
bin111111101101100…
…1011000110001000
312111222201000010022
41333123023012020
513334241023033
6552045040012
7103656152564
oct17733130610
95458630108
102137829768
119a7827168
124b7b56008
13280ba4939
14163cd66a4
15c7a3b098
hex7f6cb188

2137829768 has 8 divisors (see below), whose sum is σ = 4008430830. Its totient is φ = 1068914880.

The previous prime is 2137829723. The next prime is 2137829791. The reversal of 2137829768 is 8679287312.

It can be written as a sum of positive squares in only one way, i.e., 1103435524 + 1034394244 = 33218^2 + 32162^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×21378297682 = 9140632233893867648, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 133614353 + ... + 133614368.

Almost surely, 22137829768 is an apocalyptic number.

It is an amenable number.

2137829768 is a deficient number, since it is larger than the sum of its proper divisors (1870601062).

2137829768 is a wasteful number, since it uses less digits than its factorization.

2137829768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267228727 (or 267228723 counting only the distinct ones).

The product of its digits is 2032128, while the sum is 53.

The square root of 2137829768 is about 46236.6712469659. The cubic root of 2137829768 is about 1288.2229739483. Note that the first 3 decimals are identical.

The spelling of 2137829768 in words is "two billion, one hundred thirty-seven million, eight hundred twenty-nine thousand, seven hundred sixty-eight".

Divisors: 1 2 4 8 267228721 534457442 1068914884 2137829768