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1683890337 = 31345141729
BaseRepresentation
bin110010001011110…
…0010000010100001
311100100112111021210
41210113202002201
511422033442322
6435031340333
756504555163
oct14427420241
94310474253
101683890337
1179456a808
123abb216a9
1320ab28b1c
1411d8d0933
159cc7070c
hex645e20a1

1683890337 has 8 divisors (see below), whose sum is σ = 2245407840. Its totient is φ = 1122483200.

The previous prime is 1683890323. The next prime is 1683890339. The reversal of 1683890337 is 7330983861.

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

It is a cyclic number.

It is not a de Polignac number, because 1683890337 - 28 = 1683890081 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1683890339) 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, 19489 + ... + 61217.

It is an arithmetic number, because the mean of its divisors is an integer number (280675980).

Almost surely, 21683890337 is an apocalyptic number.

It is an amenable number.

1683890337 is a deficient number, since it is larger than the sum of its proper divisors (561517503).

1683890337 is a wasteful number, since it uses less digits than its factorization.

1683890337 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55183.

The product of its (nonzero) digits is 653184, while the sum is 48.

The square root of 1683890337 is about 41035.2328737148. The cubic root of 1683890337 is about 1189.7012966358.

The spelling of 1683890337 in words is "one billion, six hundred eighty-three million, eight hundred ninety thousand, three hundred thirty-seven".

Divisors: 1 3 13451 40353 41729 125187 561296779 1683890337