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30613392 = 2432212593
BaseRepresentation
bin111010011000…
…1111110010000
32010121022200100
41310301332100
530314112032
63012052400
7521131605
oct164617620
963538610
1030613392
111630a327
12a304100
13645b244
1440cc6ac
152a4a97c
hex1d31f90

30613392 has 30 divisors (see below), whose sum is σ = 85675382. Its totient is φ = 10204416.

The previous prime is 30613367. The next prime is 30613409. The reversal of 30613392 is 29331603.

It can be written as a sum of positive squares in only one way, i.e., 24443136 + 6170256 = 4944^2 + 2484^2 .

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct 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 5 ways as a sum of consecutive naturals, for example, 106153 + ... + 106440.

Almost surely, 230613392 is an apocalyptic number.

It is an amenable number.

30613392 is an abundant number, since it is smaller than the sum of its proper divisors (55061990).

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

30613392 is a wasteful number, since it uses less digits than its factorization.

30613392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212607 (or 212598 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 27.

The square root of 30613392 is about 5532.9370139195. The cubic root of 30613392 is about 312.8267030227.

Adding to 30613392 its reverse (29331603), we get a palindrome (59944995).

The spelling of 30613392 in words is "thirty million, six hundred thirteen thousand, three hundred ninety-two".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 36 48 72 144 212593 425186 637779 850372 1275558 1700744 1913337 2551116 3401488 3826674 5102232 7653348 10204464 15306696 30613392