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23124425 = 521989547
BaseRepresentation
bin101100000110…
…1100111001001
31121111211202012
41120031213021
521404440200
62143345305
7400361102
oct130154711
947454665
1023124425
11120647a5
1278b2235
134a385bc
1430dd3a9
15206ba35
hex160d9c9

23124425 has 24 divisors (see below), whose sum is σ = 30578400. Its totient is φ = 17297280.

The previous prime is 23124359. The next prime is 23124449. The reversal of 23124425 is 52442132.

It is a happy number.

It is not a de Polignac number, because 23124425 - 212 = 23120329 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23124425.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42002 + ... + 42548.

It is an arithmetic number, because the mean of its divisors is an integer number (1274100).

Almost surely, 223124425 is an apocalyptic number.

23124425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23124425 is a deficient number, since it is larger than the sum of its proper divisors (7453975).

23124425 is a wasteful number, since it uses less digits than its factorization.

23124425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 665 (or 660 counting only the distinct ones).

The product of its digits is 1920, while the sum is 23.

The square root of 23124425 is about 4808.7862293930. The cubic root of 23124425 is about 284.8985994044.

Adding to 23124425 its reverse (52442132), we get a palindrome (75566557).

The spelling of 23124425 in words is "twenty-three million, one hundred twenty-four thousand, four hundred twenty-five".

Divisors: 1 5 19 25 89 95 445 475 547 1691 2225 2735 8455 10393 13675 42275 48683 51965 243415 259825 924977 1217075 4624885 23124425