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30240308 = 2272346957
BaseRepresentation
bin111001101011…
…0111000110100
32002220100220102
41303112320310
530220142213
63000053232
7515016110
oct163267064
962810812
1030240308
1116084a9a
12a164218
13635a497
144032740
1529c5158
hex1cd6e34

30240308 has 24 divisors (see below), whose sum is σ = 63111552. Its totient is φ = 12396384.

The previous prime is 30240307. The next prime is 30240311. The reversal of 30240308 is 80304203.

It is a self number, because there is not a number n which added to its sum of digits gives 30240308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30240307) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22835 + ... + 24122.

It is an arithmetic number, because the mean of its divisors is an integer number (2629648).

Almost surely, 230240308 is an apocalyptic number.

It is an amenable number.

30240308 is an abundant number, since it is smaller than the sum of its proper divisors (32871244).

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

30240308 is a wasteful number, since it uses less digits than its factorization.

30240308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46991 (or 46989 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 30240308 is about 5499.1188385049. The cubic root of 30240308 is about 311.5507038378.

The spelling of 30240308 in words is "thirty million, two hundred forty thousand, three hundred eight".

Divisors: 1 2 4 7 14 23 28 46 92 161 322 644 46957 93914 187828 328699 657398 1080011 1314796 2160022 4320044 7560077 15120154 30240308