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23889372 = 22313153137
BaseRepresentation
bin101101100100…
…0010111011100
31122221201001120
41123020113130
522103424442
62212010540
7410025213
oct133102734
948851046
1023889372
1112537491
128000a50
134c45830
14325c07a
15216d4ec
hex16c85dc

23889372 has 24 divisors (see below), whose sum is σ = 60030096. Its totient is φ = 7350528.

The previous prime is 23889361. The next prime is 23889373. The reversal of 23889372 is 27398832.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23889373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76413 + ... + 76724.

It is an arithmetic number, because the mean of its divisors is an integer number (2501254).

Almost surely, 223889372 is an apocalyptic number.

It is an amenable number.

23889372 is an abundant number, since it is smaller than the sum of its proper divisors (36140724).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23889372 is a wasteful number, since it uses less digits than its factorization.

23889372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153157 (or 153155 counting only the distinct ones).

The product of its digits is 145152, while the sum is 42.

The square root of 23889372 is about 4887.6755211450. The cubic root of 23889372 is about 288.0060280374.

The spelling of 23889372 in words is "twenty-three million, eight hundred eighty-nine thousand, three hundred seventy-two".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 156 153137 306274 459411 612548 918822 1837644 1990781 3981562 5972343 7963124 11944686 23889372