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23890516 = 2213259599
BaseRepresentation
bin101101100100…
…0101001010100
31122221202121221
41123020221110
522103444031
62212020124
7410031436
oct133105124
948852557
1023890516
1112538331
128001644
134c46200
14325c656
15216da11
hex16c8a54

23890516 has 36 divisors (see below), whose sum is σ = 46116000. Its totient is φ = 10821408.

The previous prime is 23890513. The next prime is 23890549. The reversal of 23890516 is 61509832.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23890513) by changing a digit.

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, 39585 + ... + 40183.

It is an arithmetic number, because the mean of its divisors is an integer number (1281000).

Almost surely, 223890516 is an apocalyptic number.

23890516 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

23890516 is a deficient number, since it is larger than the sum of its proper divisors (22225484).

23890516 is a wasteful number, since it uses less digits than its factorization.

23890516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 688 (or 673 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 23890516 is about 4887.7925487893. The cubic root of 23890516 is about 288.0106252510.

The spelling of 23890516 in words is "twenty-three million, eight hundred ninety thousand, five hundred sixteen".

Divisors: 1 2 4 13 26 52 59 118 169 236 338 599 676 767 1198 1534 2396 3068 7787 9971 15574 19942 31148 35341 39884 70682 101231 141364 202462 404924 459433 918866 1837732 5972629 11945258 23890516