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1670137992 = 2332155914879
BaseRepresentation
bin110001110001100…
…0100100010001000
311022101122210121200
41203203010202020
511410023403432
6433420504200
756246636655
oct14343044210
94271583550
101670137992
11787827436
123a73ab060
13208022343
1411bb50c2c
159b955a7c
hex638c4888

1670137992 has 48 divisors (see below), whose sum is σ = 4526496000. Its totient is φ = 556318176.

The previous prime is 1670137969. The next prime is 1670138027. The reversal of 1670137992 is 2997310761.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 104809 + ... + 119687.

It is an arithmetic number, because the mean of its divisors is an integer number (94302000).

Almost surely, 21670137992 is an apocalyptic number.

1670137992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1670137992 is an abundant number, since it is smaller than the sum of its proper divisors (2856358008).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1670137992 is a wasteful number, since it uses less digits than its factorization.

1670137992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16450 (or 16443 counting only the distinct ones).

The product of its (nonzero) digits is 142884, while the sum is 45.

The square root of 1670137992 is about 40867.3218109531. The cubic root of 1670137992 is about 1186.4536729338.

The spelling of 1670137992 in words is "one billion, six hundred seventy million, one hundred thirty-seven thousand, nine hundred ninety-two".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 1559 3118 4677 6236 9354 12472 14031 14879 18708 28062 29758 37416 44637 56124 59516 89274 112248 119032 133911 178548 267822 357096 535644 1071288 23196361 46392722 69589083 92785444 139178166 185570888 208767249 278356332 417534498 556712664 835068996 1670137992