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23026940 = 2254332659
BaseRepresentation
bin101011111010…
…1110011111100
31121022220000122
41113311303330
521343330230
62141314112
7366503636
oct127656374
947286018
1023026940
1111aa8532
127865938
134a03111
1430b5a56
15204cbe5
hex15f5cfc

23026940 has 24 divisors (see below), whose sum is σ = 48486480. Its totient is φ = 9186048.

The previous prime is 23026921. The next prime is 23026981. The reversal of 23026940 is 4962032.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 7331 + ... + 9989.

It is an arithmetic number, because the mean of its divisors is an integer number (2020270).

Almost surely, 223026940 is an apocalyptic number.

23026940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23026940 is an abundant number, since it is smaller than the sum of its proper divisors (25459540).

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

23026940 is a wasteful number, since it uses less digits than its factorization.

23026940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3101 (or 3099 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 23026940 is about 4798.6393904939. The cubic root of 23026940 is about 284.4976891202.

Adding to 23026940 its reverse (4962032), we get a palindrome (27988972).

The spelling of 23026940 in words is "twenty-three million, twenty-six thousand, nine hundred forty".

Divisors: 1 2 4 5 10 20 433 866 1732 2165 2659 4330 5318 8660 10636 13295 26590 53180 1151347 2302694 4605388 5756735 11513470 23026940