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23728925 = 521186287
BaseRepresentation
bin101101010000…
…1001100011101
31122122112222002
41122201030131
522033311200
62204332045
7405456353
oct132411435
948575862
1023728925
1112437990
127b44025
134bba7ac
1432197d3
15213abd5
hex16a131d

23728925 has 12 divisors (see below), whose sum is σ = 32099136. Its totient is φ = 17257200.

The previous prime is 23728909. The next prime is 23728927. The reversal of 23728925 is 52982732.

It is not a de Polignac number, because 23728925 - 24 = 23728909 is a prime.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23728927) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 42869 + ... + 43418.

It is an arithmetic number, because the mean of its divisors is an integer number (2674928).

Almost surely, 223728925 is an apocalyptic number.

23728925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23728925 is a deficient number, since it is larger than the sum of its proper divisors (8370211).

23728925 is a wasteful number, since it uses less digits than its factorization.

23728925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86308 (or 86303 counting only the distinct ones).

The product of its digits is 60480, while the sum is 38.

The square root of 23728925 is about 4871.2344431366. The cubic root of 23728925 is about 287.3598056238.

The spelling of 23728925 in words is "twenty-three million, seven hundred twenty-eight thousand, nine hundred twenty-five".

Divisors: 1 5 11 25 55 275 86287 431435 949157 2157175 4745785 23728925