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24768420 = 2235412807
BaseRepresentation
bin101111001111…
…0111110100100
31201121100212220
41132132332210
522320042140
62242512340
7420346065
oct136367644
951540786
1024768420
1112a87976
1283656b0
135192991
14340a56c
152293bd0
hex179efa4

24768420 has 24 divisors (see below), whose sum is σ = 69351744. Its totient is φ = 6604896.

The previous prime is 24768391. The next prime is 24768427. The reversal of 24768420 is 2486742.

It is a super-2 number, since 2×247684202 = 1226949258592800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (24768427) 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, 206344 + ... + 206463.

It is an arithmetic number, because the mean of its divisors is an integer number (2889656).

Almost surely, 224768420 is an apocalyptic number.

24768420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

24768420 is an abundant number, since it is smaller than the sum of its proper divisors (44583324).

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

24768420 is a wasteful number, since it uses less digits than its factorization.

24768420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 412819 (or 412817 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 33.

The square root of 24768420 is about 4976.7881208667. The cubic root of 24768420 is about 291.4961128948.

The spelling of 24768420 in words is "twenty-four million, seven hundred sixty-eight thousand, four hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 412807 825614 1238421 1651228 2064035 2476842 4128070 4953684 6192105 8256140 12384210 24768420