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24307940 = 2251215397
BaseRepresentation
bin101110010111…
…0100011100100
31200201222020002
41130232203210
522210323230
62225000432
7413420426
oct134564344
950658202
1024307940
11127a2a08
128183118
1350611c7
14332a816
152202545
hex172e8e4

24307940 has 12 divisors (see below), whose sum is σ = 51046716. Its totient is φ = 9723168.

The previous prime is 24307931. The next prime is 24307993. The reversal of 24307940 is 4970342.

It can be written as a sum of positive squares in 2 ways, for example, as 3587236 + 20720704 = 1894^2 + 4552^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 607679 + ... + 607718.

It is an arithmetic number, because the mean of its divisors is an integer number (4253893).

Almost surely, 224307940 is an apocalyptic number.

24307940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

24307940 is an abundant number, since it is smaller than the sum of its proper divisors (26738776).

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

24307940 is a wasteful number, since it uses less digits than its factorization.

24307940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1215406 (or 1215404 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 24307940 is about 4930.3083067897. The cubic root of 24307940 is about 289.6783592126.

The spelling of 24307940 in words is "twenty-four million, three hundred seven thousand, nine hundred forty".

Divisors: 1 2 4 5 10 20 1215397 2430794 4861588 6076985 12153970 24307940