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23242825 = 521723217
BaseRepresentation
bin101100010101…
…0100001001001
31121201212011101
41120222201021
521422232300
62150101401
7401363224
oct130524111
947655141
1023242825
1112135751
12794a861
134a7a468
1431305bb
152091b6a
hex162a849

23242825 has 18 divisors (see below), whose sum is σ = 30625706. Its totient is φ = 17495040.

The previous prime is 23242819. The next prime is 23242837. The reversal of 23242825 is 52824232.

It is a happy number.

It can be written as a sum of positive squares in 9 ways, for example, as 784 + 23242041 = 28^2 + 4821^2 .

It is not a de Polignac number, because 23242825 - 29 = 23242313 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23242793 and 23242802.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 5617 + ... + 8833.

Almost surely, 223242825 is an apocalyptic number.

23242825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23242825 is a deficient number, since it is larger than the sum of its proper divisors (7382881).

23242825 is a wasteful number, since it uses less digits than its factorization.

23242825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3261 (or 3239 counting only the distinct ones).

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

The square root of 23242825 is about 4821.0813102457. The cubic root of 23242825 is about 285.3840109216.

The spelling of 23242825 in words is "twenty-three million, two hundred forty-two thousand, eight hundred twenty-five".

Divisors: 1 5 17 25 85 289 425 1445 3217 7225 16085 54689 80425 273445 929713 1367225 4648565 23242825