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23241289 = 315211439
BaseRepresentation
bin101100010101…
…0001001001001
31121201210001111
41120222021021
521422210124
62150050321
7401355601
oct130521111
947653044
1023241289
1112134585
1279499a1
134a79856
14312dc01
152091494
hex162a249

23241289 has 8 divisors (see below), whose sum is σ = 24053760. Its totient is φ = 22432800.

The previous prime is 23241287. The next prime is 23241299. The reversal of 23241289 is 98214232.

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 23241289 - 21 = 23241287 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23241289.

It is not an unprimeable number, because it can be changed into a prime (23241287) 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, 15432 + ... + 16870.

It is an arithmetic number, because the mean of its divisors is an integer number (3006720).

Almost surely, 223241289 is an apocalyptic number.

It is an amenable number.

23241289 is a deficient number, since it is larger than the sum of its proper divisors (812471).

23241289 is a wasteful number, since it uses less digits than its factorization.

23241289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1991.

The product of its digits is 6912, while the sum is 31.

The square root of 23241289 is about 4820.9220072513. The cubic root of 23241289 is about 285.3777242575.

The spelling of 23241289 in words is "twenty-three million, two hundred forty-one thousand, two hundred eighty-nine".

Divisors: 1 31 521 1439 16151 44609 749719 23241289