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23030090 = 2519532287
BaseRepresentation
bin101011111011…
…0100101001010
31121100001100022
41113312211022
521343430330
62141340442
7366516056
oct127664512
947301308
1023030090
1111aaa936
127867722
134a04695
1430b6c66
15204dae5
hex15f694a

23030090 has 32 divisors (see below), whose sum is σ = 44478720. Its totient is φ = 8558784.

The previous prime is 23030081. The next prime is 23030099. The reversal of 23030090 is 9003032.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (23030081) and next prime (23030099).

Together with 21448630 it forms an amicable pair .

It is not an unprimeable number, because it can be changed into a prime (23030099) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8927 + ... + 11213.

It is an arithmetic number, because the mean of its divisors is an integer number (1389960).

Almost surely, 223030090 is an apocalyptic number.

23030090 is a deficient number, since it is larger than the sum of its proper divisors (21448630).

23030090 is a wasteful number, since it uses less digits than its factorization.

23030090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2366.

The product of its (nonzero) digits is 162, while the sum is 17.

The square root of 23030090 is about 4798.9675973067. The cubic root of 23030090 is about 284.5106612717.

The spelling of 23030090 in words is "twenty-three million, thirty thousand, ninety".

Divisors: 1 2 5 10 19 38 53 95 106 190 265 530 1007 2014 2287 4574 5035 10070 11435 22870 43453 86906 121211 217265 242422 434530 606055 1212110 2303009 4606018 11515045 23030090