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23020344 = 2332319727
BaseRepresentation
bin101011111010…
…0001100111000
31121022112222100
41113310030320
521343122334
62141223400
7366445464
oct127641470
947275870
1023020344
1111aa3586
127861b60
134a00109
1430b34a4
15204ac99
hex15f4338

23020344 has 24 divisors (see below), whose sum is σ = 62346960. Its totient is φ = 7673424.

The previous prime is 23020339. The next prime is 23020357. The reversal of 23020344 is 44302032.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 159792 + ... + 159935.

It is an arithmetic number, because the mean of its divisors is an integer number (2597790).

Almost surely, 223020344 is an apocalyptic number.

23020344 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

23020344 is an abundant number, since it is smaller than the sum of its proper divisors (39326616).

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

23020344 is a wasteful number, since it uses less digits than its factorization.

23020344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319739 (or 319732 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 23020344 is about 4797.9520631203. The cubic root of 23020344 is about 284.4705220142.

Adding to 23020344 its reverse (44302032), we get a palindrome (67322376).

The spelling of 23020344 in words is "twenty-three million, twenty thousand, three hundred forty-four".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 319727 639454 959181 1278908 1918362 2557816 2877543 3836724 5755086 7673448 11510172 23020344