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1683712938 = 23793552137
BaseRepresentation
bin110010001011011…
…0110101110101010
311100100012110221110
41210112312232222
511422012303223
6435023451150
756503216035
oct14426665652
94310173843
101683712938
117944594a6
123aba56ab6
1320aa9615b
1411d88601c
159cc37d93
hex645b6baa

1683712938 has 16 divisors (see below), whose sum is σ = 3410052480. Its totient is φ = 554133216.

The previous prime is 1683712909. The next prime is 1683712939. The reversal of 1683712938 is 8392173861.

It is not an unprimeable number, because it can be changed into a prime (1683712939) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 1775595 + ... + 1776542.

It is an arithmetic number, because the mean of its divisors is an integer number (213128280).

Almost surely, 21683712938 is an apocalyptic number.

1683712938 is an abundant number, since it is smaller than the sum of its proper divisors (1726339542).

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

1683712938 is a wasteful number, since it uses less digits than its factorization.

1683712938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3552221.

The product of its digits is 435456, while the sum is 48.

The square root of 1683712938 is about 41033.0712718412. The cubic root of 1683712938 is about 1189.6595165532.

The spelling of 1683712938 in words is "one billion, six hundred eighty-three million, seven hundred twelve thousand, nine hundred thirty-eight".

Divisors: 1 2 3 6 79 158 237 474 3552137 7104274 10656411 21312822 280618823 561237646 841856469 1683712938