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30194992 = 2417313581
BaseRepresentation
bin111001100101…
…1110100110000
32002211001202001
41303023310300
530212214432
62555103344
7514440022
oct163136460
962731661
1030194992
1116053a43
12a141b54
136342979
144020012
1529b69e7
hex1ccbd30

30194992 has 40 divisors (see below), whose sum is σ = 63960192. Its totient is φ = 13747200.

The previous prime is 30194977. The next prime is 30195013. The reversal of 30194992 is 29949103.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6642 + ... + 10222.

Almost surely, 230194992 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30194992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31980096).

30194992 is an abundant number, since it is smaller than the sum of its proper divisors (33765200).

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

30194992 is a wasteful number, since it uses less digits than its factorization.

30194992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3637 (or 3631 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 37.

The square root of 30194992 is about 5494.9969972694. The cubic root of 30194992 is about 311.3950033759.

The spelling of 30194992 in words is "thirty million, one hundred ninety-four thousand, nine hundred ninety-two".

Divisors: 1 2 4 8 16 17 31 34 62 68 124 136 248 272 496 527 1054 2108 3581 4216 7162 8432 14324 28648 57296 60877 111011 121754 222022 243508 444044 487016 888088 974032 1776176 1887187 3774374 7548748 15097496 30194992