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30678683 = 738311443
BaseRepresentation
bin111010100000…
…1111010011011
32010201122020112
41311001322123
530323204213
63013314535
7521523140
oct165017233
963648215
1030678683
1116354392
12a335a4b
136481b89
1441083c7
152a5eea8
hex1d41e9b

30678683 has 8 divisors (see below), whose sum is σ = 35155968. Its totient is φ = 26225064.

The previous prime is 30678667. The next prime is 30678689. The reversal of 30678683 is 38687603.

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 30678683 - 24 = 30678667 is a prime.

It is a super-2 number, since 2×306786832 = 1882363181228978, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30678683.

It is not an unprimeable number, because it can be changed into a prime (30678689) 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, 3041 + ... + 8402.

It is an arithmetic number, because the mean of its divisors is an integer number (4394496).

Almost surely, 230678683 is an apocalyptic number.

30678683 is a deficient number, since it is larger than the sum of its proper divisors (4477285).

30678683 is a wasteful number, since it uses less digits than its factorization.

30678683 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11833.

The product of its (nonzero) digits is 145152, while the sum is 41.

The square root of 30678683 is about 5538.8340830901. The cubic root of 30678683 is about 313.0489398037.

The spelling of 30678683 in words is "thirty million, six hundred seventy-eight thousand, six hundred eighty-three".

Divisors: 1 7 383 2681 11443 80101 4382669 30678683