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30540512 = 25954391
BaseRepresentation
bin111010010000…
…0001011100000
32010110121201002
41310200023200
530304244022
63010331132
7520406252
oct164401340
963417632
1030540512
111626a5a2
12a289aa8
136434012
1440adcd2
152a34092
hex1d202e0

30540512 has 12 divisors (see below), whose sum is σ = 60126696. Its totient is φ = 15270240.

The previous prime is 30540493. The next prime is 30540529. The reversal of 30540512 is 21504503.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 477164 + ... + 477227.

It is an arithmetic number, because the mean of its divisors is an integer number (5010558).

Almost surely, 230540512 is an apocalyptic number.

30540512 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

30540512 is a deficient number, since it is larger than the sum of its proper divisors (29586184).

30540512 is an equidigital number, since it uses as much as digits as its factorization.

30540512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 954401 (or 954393 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 30540512 is about 5526.3470756007. The cubic root of 30540512 is about 312.5782613589.

The spelling of 30540512 in words is "thirty million, five hundred forty thousand, five hundred twelve".

Divisors: 1 2 4 8 16 32 954391 1908782 3817564 7635128 15270256 30540512