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23012125 = 53227811
BaseRepresentation
bin101011111001…
…0001100011101
31121022010200221
41113302030131
521342342000
62141121341
7366412513
oct127621435
947263627
1023012125
1111a98394
127859251
1349c9456
1430b04b3
15204861a
hex15f231d

23012125 has 16 divisors (see below), whose sum is σ = 28881216. Its totient is φ = 18306000.

The previous prime is 23012117. The next prime is 23012149. The reversal of 23012125 is 52121032.

It is not a de Polignac number, because 23012125 - 23 = 23012117 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23012099 and 23012108.

It is a congruent number.

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, 27970 + ... + 28780.

It is an arithmetic number, because the mean of its divisors is an integer number (1805076).

Almost surely, 223012125 is an apocalyptic number.

23012125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23012125 is a deficient number, since it is larger than the sum of its proper divisors (5869091).

23012125 is an equidigital number, since it uses as much as digits as its factorization.

23012125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1053 (or 1043 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 23012125 is about 4797.0954753892. The cubic root of 23012125 is about 284.4366629556.

Adding to 23012125 its reverse (52121032), we get a palindrome (75133157).

The spelling of 23012125 in words is "twenty-three million, twelve thousand, one hundred twenty-five".

Divisors: 1 5 25 125 227 811 1135 4055 5675 20275 28375 101375 184097 920485 4602425 23012125