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23032542 = 2313714159
BaseRepresentation
bin101011111011…
…1001011011110
31121100011201010
41113313023132
521344020132
62141400050
7366526161
oct127671336
947304633
1023032542
1112001765
127869026
134a05830
1430b7ad8
15204e6cc
hex15f72de

23032542 has 32 divisors (see below), whose sum is σ = 50319360. Its totient is φ = 6985440.

The previous prime is 23032531. The next prime is 23032547. The reversal of 23032542 is 24523032.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23032547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3459 + ... + 7617.

It is an arithmetic number, because the mean of its divisors is an integer number (1572480).

Almost surely, 223032542 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23032542, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25159680).

23032542 is an abundant number, since it is smaller than the sum of its proper divisors (27286818).

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

23032542 is a wasteful number, since it uses less digits than its factorization.

23032542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4248.

The product of its (nonzero) digits is 1440, while the sum is 21.

The square root of 23032542 is about 4799.2230621216. The cubic root of 23032542 is about 284.5207581404.

Adding to 23032542 its reverse (24523032), we get a palindrome (47555574).

The spelling of 23032542 in words is "twenty-three million, thirty-two thousand, five hundred forty-two".

Divisors: 1 2 3 6 13 26 39 71 78 142 213 426 923 1846 2769 4159 5538 8318 12477 24954 54067 108134 162201 295289 324402 590578 885867 1771734 3838757 7677514 11516271 23032542