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1680936383 = 7421570389
BaseRepresentation
bin110010000110001…
…0000110110111111
311100010222102020002
41210030100312333
511420304431013
6434444144515
756440503110
oct14414206677
94303872202
101680936383
11792932425
123aab3813b
1320a333419
1411d362207
159c88a358
hex64310dbf

1680936383 has 8 divisors (see below), whose sum is σ = 1925636640. Its totient is φ = 1437377760.

The previous prime is 1680936317. The next prime is 1680936407. The reversal of 1680936383 is 3836390861.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1680936383 - 216 = 1680870847 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1680936583) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 282248 + ... + 288141.

It is an arithmetic number, because the mean of its divisors is an integer number (240704580).

Almost surely, 21680936383 is an apocalyptic number.

1680936383 is a deficient number, since it is larger than the sum of its proper divisors (244700257).

1680936383 is an equidigital number, since it uses as much as digits as its factorization.

1680936383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 570817.

The product of its (nonzero) digits is 559872, while the sum is 47.

The square root of 1680936383 is about 40999.2241755865. The cubic root of 1680936383 is about 1189.0052141130.

The spelling of 1680936383 in words is "one billion, six hundred eighty million, nine hundred thirty-six thousand, three hundred eighty-three".

Divisors: 1 7 421 2947 570389 3992723 240133769 1680936383