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30647082 = 2331316319
BaseRepresentation
bin111010011101…
…0001100101010
32010200000220010
41310322030222
530321201312
63012512350
7521332044
oct164721452
963600803
1030647082
1116332674
12a31b6b6
13647068b
1440daa94
152a5593c
hex1d3a32a

30647082 has 16 divisors (see below), whose sum is σ = 61493760. Its totient is φ = 10182432.

The previous prime is 30647081. The next prime is 30647087. The reversal of 30647082 is 28074603.

It is a super-2 number, since 2×306470822 = 1878487270229448, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30647081) by changing a digit.

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, 6282 + ... + 10037.

It is an arithmetic number, because the mean of its divisors is an integer number (3843360).

Almost surely, 230647082 is an apocalyptic number.

30647082 is an abundant number, since it is smaller than the sum of its proper divisors (30846678).

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

30647082 is a wasteful number, since it uses less digits than its factorization.

30647082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16637.

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 30647082 is about 5535.9806719316. The cubic root of 30647082 is about 312.9414160856.

The spelling of 30647082 in words is "thirty million, six hundred forty-seven thousand, eighty-two".

Divisors: 1 2 3 6 313 626 939 1878 16319 32638 48957 97914 5107847 10215694 15323541 30647082