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23453125 = 561979
BaseRepresentation
bin101100101110…
…1110111000101
31122010112122021
41121131313011
522001000000
62154403141
7403230313
oct131356705
948115567
1023453125
1112269753
127a304b1
134b220b7
1431870b3
1520d411a
hex165ddc5

23453125 has 28 divisors (see below), whose sum is σ = 31249600. Its totient is φ = 17550000.

The previous prime is 23453119. The next prime is 23453137. The reversal of 23453125 is 52135432.

It is not a de Polignac number, because 23453125 - 25 = 23453093 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a self number, because there is not a number n which added to its sum of digits gives 23453125.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 296836 + ... + 296914.

Almost surely, 223453125 is an apocalyptic number.

23453125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23453125 is a deficient number, since it is larger than the sum of its proper divisors (7796475).

23453125 is an frugal number, since it uses more digits than its factorization.

23453125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128 (or 103 counting only the distinct ones).

The product of its digits is 3600, while the sum is 25.

The square root of 23453125 is about 4842.8426569526. The cubic root of 23453125 is about 286.2421417470.

Adding to 23453125 its reverse (52135432), we get a palindrome (75588557).

The spelling of 23453125 in words is "twenty-three million, four hundred fifty-three thousand, one hundred twenty-five".

Divisors: 1 5 19 25 79 95 125 395 475 625 1501 1975 2375 3125 7505 9875 11875 15625 37525 49375 59375 187625 246875 296875 938125 1234375 4690625 23453125