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23104530 = 23251715101
BaseRepresentation
bin101100000100…
…0110000010010
31121110211110100
41120020300102
521403321110
62143113230
7400246101
oct130106022
947424410
1023104530
1112050859
1278a2816
134a2c527
1430d6038
152065bc0
hex1608c12

23104530 has 48 divisors (see below), whose sum is σ = 63609624. Its totient is φ = 5798400.

The previous prime is 23104519. The next prime is 23104537. The reversal of 23104530 is 3540132.

It can be written as a sum of positive squares in 4 ways, for example, as 17214201 + 5890329 = 4149^2 + 2427^2 .

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

It is not an unprimeable number, because it can be changed into a prime (23104537) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6021 + ... + 9080.

Almost surely, 223104530 is an apocalyptic number.

23104530 is an abundant number, since it is smaller than the sum of its proper divisors (40505094).

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

23104530 is a wasteful number, since it uses less digits than its factorization.

23104530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15131 (or 15128 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 23104530 is about 4806.7171749542. The cubic root of 23104530 is about 284.8168721988.

Adding to 23104530 its reverse (3540132), we get a palindrome (26644662).

The spelling of 23104530 in words is "twenty-three million, one hundred four thousand, five hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 17 18 30 34 45 51 85 90 102 153 170 255 306 510 765 1530 15101 30202 45303 75505 90606 135909 151010 226515 256717 271818 453030 513434 679545 770151 1283585 1359090 1540302 2310453 2567170 3850755 4620906 7701510 11552265 23104530