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24430825 = 52977233
BaseRepresentation
bin101110100110…
…0100011101001
31200222012210101
41131030203221
522223241300
62231345401
7414441616
oct135144351
950865711
1024430825
1112877271
128222261
1350a5113
14335d50d
152228b6a
hex174c8e9

24430825 has 6 divisors (see below), whose sum is σ = 30294254. Its totient is φ = 19544640.

The previous prime is 24430817. The next prime is 24430831. The reversal of 24430825 is 52803442.

It can be written as a sum of positive squares in 3 ways, for example, as 8020224 + 16410601 = 2832^2 + 4051^2 .

It is not a de Polignac number, because 24430825 - 23 = 24430817 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 24430793 and 24430802.

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 5 ways as a sum of consecutive naturals, for example, 488592 + ... + 488641.

Almost surely, 224430825 is an apocalyptic number.

24430825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

24430825 is a deficient number, since it is larger than the sum of its proper divisors (5863429).

24430825 is an equidigital number, since it uses as much as digits as its factorization.

24430825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 977243 (or 977238 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 28.

The square root of 24430825 is about 4942.7547986927. The cubic root of 24430825 is about 290.1656801982.

The spelling of 24430825 in words is "twenty-four million, four hundred thirty thousand, eight hundred twenty-five".

Divisors: 1 5 25 977233 4886165 24430825