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30468865 = 576591321
BaseRepresentation
bin111010000111…
…0101100000001
32010022222102111
41310032230001
530300000430
63005015321
7516660340
oct164165401
963288374
1030468865
1116220789
12a254541
13640a51b
144091b57
152a1cc2a
hex1d0eb01

30468865 has 16 divisors (see below), whose sum is σ = 41880960. Its totient is φ = 20845440.

The previous prime is 30468857. The next prime is 30468887. The reversal of 30468865 is 56886403.

It is not a de Polignac number, because 30468865 - 23 = 30468857 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22405 + ... + 23725.

It is an arithmetic number, because the mean of its divisors is an integer number (2617560).

Almost surely, 230468865 is an apocalyptic number.

30468865 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

30468865 is a deficient number, since it is larger than the sum of its proper divisors (11412095).

30468865 is a wasteful number, since it uses less digits than its factorization.

30468865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1992.

The product of its (nonzero) digits is 138240, while the sum is 40.

The square root of 30468865 is about 5519.8609583938. The cubic root of 30468865 is about 312.3336373174. Note that the first 3 decimals are identical.

It can be divided in two parts, 3046 and 8865, that added together give a palindrome (11911).

The spelling of 30468865 in words is "thirty million, four hundred sixty-eight thousand, eight hundred sixty-five".

Divisors: 1 5 7 35 659 1321 3295 4613 6605 9247 23065 46235 870539 4352695 6093773 30468865