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1689677136 = 243271676267
BaseRepresentation
bin110010010110110…
…0110110101010000
311100202102111021200
41210231212311100
511430024132021
6435355351200
756605006260
oct14455466520
94322374250
101689677136
11797862494
123b1a52500
1320c0a3a74
141205997a0
159d515126
hex64b66d50

1689677136 has 60 divisors (see below), whose sum is σ = 5404288032. Its totient is φ = 482764608.

The previous prime is 1689677063. The next prime is 1689677147. The reversal of 1689677136 is 6317769861.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 837126 + ... + 839141.

Almost surely, 21689677136 is an apocalyptic number.

1689677136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1689677136 is an abundant number, since it is smaller than the sum of its proper divisors (3714610896).

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

1689677136 is a wasteful number, since it uses less digits than its factorization.

1689677136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1676288 (or 1676279 counting only the distinct ones).

The product of its digits is 2286144, while the sum is 54.

The square root of 1689677136 is about 41105.6825268721. The cubic root of 1689677136 is about 1191.0625671670.

The spelling of 1689677136 in words is "one billion, six hundred eighty-nine million, six hundred seventy-seven thousand, one hundred thirty-six".

Divisors: 1 2 3 4 6 7 8 9 12 14 16 18 21 24 28 36 42 48 56 63 72 84 112 126 144 168 252 336 504 1008 1676267 3352534 5028801 6705068 10057602 11733869 13410136 15086403 20115204 23467738 26820272 30172806 35201607 40230408 46935476 60345612 70403214 80460816 93870952 105604821 120691224 140806428 187741904 211209642 241382448 281612856 422419284 563225712 844838568 1689677136