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23990975 = 522933091
BaseRepresentation
bin101101110000…
…1001010111111
31200010212102122
41123201022333
522120202400
62214113155
7410630351
oct133411277
950125378
1023990975
11125a6858
12804b7bb
134c7cb58
1432870d1
15218d685
hex16e12bf

23990975 has 12 divisors (see below), whose sum is σ = 30775560. Its totient is φ = 18530400.

The previous prime is 23990969. The next prime is 23991041. The reversal of 23990975 is 57909932.

It is not a de Polignac number, because 23990975 - 222 = 19796671 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15821 + ... + 17270.

It is an arithmetic number, because the mean of its divisors is an integer number (2564630).

Almost surely, 223990975 is an apocalyptic number.

23990975 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

23990975 is a deficient number, since it is larger than the sum of its proper divisors (6784585).

23990975 is a wasteful number, since it uses less digits than its factorization.

23990975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33130 (or 33125 counting only the distinct ones).

The product of its (nonzero) digits is 153090, while the sum is 44.

The square root of 23990975 is about 4898.0582887508. The cubic root of 23990975 is about 288.4137531330.

The spelling of 23990975 in words is "twenty-three million, nine hundred ninety thousand, nine hundred seventy-five".

Divisors: 1 5 25 29 145 725 33091 165455 827275 959639 4798195 23990975