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23812090 = 2537139463
BaseRepresentation
bin101101011010…
…1011111111010
31122210210001021
41122311133322
522043441330
62210213054
7406254001
oct132653772
948723037
1023812090
1112494415
127b8418a
134c195c3
14323bc38
15215567a
hex16b57fa

23812090 has 32 divisors (see below), whose sum is σ = 44432640. Its totient is φ = 9180864.

The previous prime is 23812079. The next prime is 23812091. The reversal of 23812090 is 9021832.

It is not an unprimeable number, because it can be changed into a prime (23812091) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 51199 + ... + 51661.

It is an arithmetic number, because the mean of its divisors is an integer number (1388520).

Almost surely, 223812090 is an apocalyptic number.

23812090 is a deficient number, since it is larger than the sum of its proper divisors (20620550).

23812090 is a wasteful number, since it uses less digits than its factorization.

23812090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 646.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 23812090 is about 4879.7633139323. The cubic root of 23812090 is about 287.6951265167.

The spelling of 23812090 in words is "twenty-three million, eight hundred twelve thousand, ninety".

Divisors: 1 2 5 10 37 74 139 185 278 370 463 695 926 1390 2315 4630 5143 10286 17131 25715 34262 51430 64357 85655 128714 171310 321785 643570 2381209 4762418 11906045 23812090