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30542582 = 272311659
BaseRepresentation
bin111010010000…
…0101011110110
32010110201112202
41310200223312
530304330312
63010344502
7520415300
oct164405366
963421482
1030542582
1116271104
12a28b132
136434c45
1440b0970
152a349c2
hex1d20af6

30542582 has 12 divisors (see below), whose sum is σ = 53293860. Its totient is φ = 13089636.

The previous prime is 30542579. The next prime is 30542641. The reversal of 30542582 is 28524503.

It is a congruent number.

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, 155732 + ... + 155927.

It is an arithmetic number, because the mean of its divisors is an integer number (4441155).

Almost surely, 230542582 is an apocalyptic number.

30542582 is a deficient number, since it is larger than the sum of its proper divisors (22751278).

30542582 is a wasteful number, since it uses less digits than its factorization.

30542582 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311675 (or 311668 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 30542582 is about 5526.5343570813. The cubic root of 30542582 is about 312.5853232617.

The spelling of 30542582 in words is "thirty million, five hundred forty-two thousand, five hundred eighty-two".

Divisors: 1 2 7 14 49 98 311659 623318 2181613 4363226 15271291 30542582