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23122625 = 531131637
BaseRepresentation
bin101100000110…
…1001011000001
31121111202021112
41120031023001
521404411000
62143333105
7400352621
oct130151301
947452245
1023122625
1112063409
1278b1195
134a37836
1430dc881
15206b235
hex160d2c1

23122625 has 16 divisors (see below), whose sum is σ = 29130192. Its totient is φ = 18323200.

The previous prime is 23122609. The next prime is 23122709. The reversal of 23122625 is 52622132.

It can be written as a sum of positive squares in 8 ways, for example, as 20638849 + 2483776 = 4543^2 + 1576^2 .

It is not a de Polignac number, because 23122625 - 24 = 23122609 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23122625.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13307 + ... + 14943.

It is an arithmetic number, because the mean of its divisors is an integer number (1820637).

Almost surely, 223122625 is an apocalyptic number.

23122625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23122625 is a deficient number, since it is larger than the sum of its proper divisors (6007567).

23122625 is a wasteful number, since it uses less digits than its factorization.

23122625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1765 (or 1755 counting only the distinct ones).

The product of its digits is 1440, while the sum is 23.

The square root of 23122625 is about 4808.5990683358. The cubic root of 23122625 is about 284.8912070651.

Adding to 23122625 its reverse (52622132), we get a palindrome (75744757).

The spelling of 23122625 in words is "twenty-three million, one hundred twenty-two thousand, six hundred twenty-five".

Divisors: 1 5 25 113 125 565 1637 2825 8185 14125 40925 184981 204625 924905 4624525 23122625