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23389956 = 2232719151
BaseRepresentation
bin101100100111…
…0011100000100
31122000022222200
41121032130010
521441434311
62153154500
7402545202
oct131163404
948008880
1023389956
1112226247
1279bba30
134acc415
14316c072
1520c0556
hex164e704

23389956 has 36 divisors (see below), whose sum is σ = 59963904. Its totient is φ = 7686000.

The previous prime is 23389913. The next prime is 23389963. The reversal of 23389956 is 65998332.

It is a tau number, because it is divible by the number of its divisors (36).

It is a zygodrome in base 3.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2020 + ... + 7131.

It is an arithmetic number, because the mean of its divisors is an integer number (1665664).

Almost surely, 223389956 is an apocalyptic number.

It is an amenable number.

23389956 is an abundant number, since it is smaller than the sum of its proper divisors (36573948).

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

23389956 is a wasteful number, since it uses less digits than its factorization.

23389956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9232 (or 9227 counting only the distinct ones).

The product of its digits is 349920, while the sum is 45.

The square root of 23389956 is about 4836.3163668230. The cubic root of 23389956 is about 285.9849210431.

The spelling of 23389956 in words is "twenty-three million, three hundred eighty-nine thousand, nine hundred fifty-six".

Divisors: 1 2 3 4 6 9 12 18 36 71 142 213 284 426 639 852 1278 2556 9151 18302 27453 36604 54906 82359 109812 164718 329436 649721 1299442 1949163 2598884 3898326 5847489 7796652 11694978 23389956