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30519934 = 231492257
BaseRepresentation
bin111010001101…
…1001001111110
32010102120110221
41310123021332
530303114214
63010051554
7520262254
oct164331176
963376427
1030519934
1116256095
12a279bba
136427843
1440a65d4
152a2ce24
hex1d1b27e

30519934 has 8 divisors (see below), whose sum is σ = 47256768. Its totient is φ = 14767680.

The previous prime is 30519917. The next prime is 30519941. The reversal of 30519934 is 43991503.

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

It is a self number, because there is not a number n which added to its sum of digits gives 30519934.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 246067 + ... + 246190.

It is an arithmetic number, because the mean of its divisors is an integer number (5907096).

Almost surely, 230519934 is an apocalyptic number.

30519934 is a deficient number, since it is larger than the sum of its proper divisors (16736834).

30519934 is a wasteful number, since it uses less digits than its factorization.

30519934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 492290.

The product of its (nonzero) digits is 14580, while the sum is 34.

The square root of 30519934 is about 5524.4849533690. The cubic root of 30519934 is about 312.5080411798.

The spelling of 30519934 in words is "thirty million, five hundred nineteen thousand, nine hundred thirty-four".

Divisors: 1 2 31 62 492257 984514 15259967 30519934