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23013004 = 2271515443
BaseRepresentation
bin101011111001…
…0011010001100
31121022011220111
41113302122030
521342404004
62141125404
7366415210
oct127623214
947264814
1023013004
1111a99013
127859864
1349c9981
1430b0940
152048a04
hex15f268c

23013004 has 24 divisors (see below), whose sum is σ = 46339328. Its totient is φ = 9795600.

The previous prime is 23012993. The next prime is 23013007. The reversal of 23013004 is 40031032.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23013007) 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, 1507 + ... + 6949.

Almost surely, 223013004 is an apocalyptic number.

It is an amenable number.

23013004 is an abundant number, since it is smaller than the sum of its proper divisors (23326324).

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

23013004 is a wasteful number, since it uses less digits than its factorization.

23013004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5605 (or 5603 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 23013004 is about 4797.1870924532. The cubic root of 23013004 is about 284.4402844760.

Adding to 23013004 its reverse (40031032), we get a palindrome (63044036).

The spelling of 23013004 in words is "twenty-three million, thirteen thousand, four".

Divisors: 1 2 4 7 14 28 151 302 604 1057 2114 4228 5443 10886 21772 38101 76202 152404 821893 1643786 3287572 5753251 11506502 23013004