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2131660234 = 211402724061
BaseRepresentation
bin111111100001110…
…1000110111001010
312111120002120010001
41333003220313022
513331201111414
6551304513214
7103552545604
oct17703506712
95446076101
102131660234
119a42a2980
124b5a7b80a
1327c824722
1416316c174
15c721d074
hex7f0e8dca

2131660234 has 16 divisors (see below), whose sum is σ = 3489182496. Its totient is φ = 968655600.

The previous prime is 2131660229. The next prime is 2131660249. The reversal of 2131660234 is 4320661312.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76564 + ... + 100624.

It is an arithmetic number, because the mean of its divisors is an integer number (218073906).

Almost surely, 22131660234 is an apocalyptic number.

2131660234 is a deficient number, since it is larger than the sum of its proper divisors (1357522262).

2131660234 is a wasteful number, since it uses less digits than its factorization.

2131660234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28101.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 2131660234 is about 46169.9061510850. The cubic root of 2131660234 is about 1286.9825581992.

The spelling of 2131660234 in words is "two billion, one hundred thirty-one million, six hundred sixty thousand, two hundred thirty-four".

Divisors: 1 2 11 22 4027 8054 24061 44297 48122 88594 264671 529342 96893647 193787294 1065830117 2131660234