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23920253 = 723148573
BaseRepresentation
bin101101100111…
…1111001111101
31200000021102022
41123033321331
522110422003
62212405525
7410214230
oct133177175
950007368
1023920253
1112558705
1280168a5
134c568c6
143269417
152177738
hex16cfe7d

23920253 has 8 divisors (see below), whose sum is σ = 28526208. Its totient is φ = 19611504.

The previous prime is 23920229. The next prime is 23920277. The reversal of 23920253 is 35202932.

It is an interprime number because it is at equal distance from previous prime (23920229) and next prime (23920277).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23920253 - 212 = 23916157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23920213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74126 + ... + 74447.

It is an arithmetic number, because the mean of its divisors is an integer number (3565776).

Almost surely, 223920253 is an apocalyptic number.

23920253 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

23920253 is a deficient number, since it is larger than the sum of its proper divisors (4605955).

23920253 is a wasteful number, since it uses less digits than its factorization.

23920253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148603.

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 23920253 is about 4890.8335690350. The cubic root of 23920253 is about 288.1300732211.

The spelling of 23920253 in words is "twenty-three million, nine hundred twenty thousand, two hundred fifty-three".

Divisors: 1 7 23 161 148573 1040011 3417179 23920253