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30534655 = 56106931
BaseRepresentation
bin111010001111…
…0101111111111
32010110022200011
41310132233333
530304102110
63010244051
7520353214
oct164365777
963408604
1030534655
1116266158
12a286627
136431458
1440abb0b
152a3248a
hex1d1ebff

30534655 has 4 divisors (see below), whose sum is σ = 36641592. Its totient is φ = 24427720.

The previous prime is 30534649. The next prime is 30534667. The reversal of 30534655 is 55643503.

It is a semiprime because it is the product of two primes.

It is a de Polignac number, because none of the positive numbers 2k-30534655 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3053461 + ... + 3053470.

It is an arithmetic number, because the mean of its divisors is an integer number (9160398).

Almost surely, 230534655 is an apocalyptic number.

30534655 is a deficient number, since it is larger than the sum of its proper divisors (6106937).

30534655 is an equidigital number, since it uses as much as digits as its factorization.

30534655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6106936.

The product of its (nonzero) digits is 27000, while the sum is 31.

The square root of 30534655 is about 5525.8171341441. The cubic root of 30534655 is about 312.5582781977.

The spelling of 30534655 in words is "thirty million, five hundred thirty-four thousand, six hundred fifty-five".

Divisors: 1 5 6106931 30534655