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23045130 = 2325256057
BaseRepresentation
bin101011111101…
…0010000001010
31121100210222100
41113322100022
521344421010
62141534230
7366610653
oct127722012
947323870
1023045130
1112010169
127874376
134a0b494
1430bc52a
1520532c0
hex15fa40a

23045130 has 24 divisors (see below), whose sum is σ = 59917572. Its totient is φ = 6145344.

The previous prime is 23045051. The next prime is 23045131. The reversal of 23045130 is 3154032.

It can be written as a sum of positive squares in 2 ways, for example, as 22496049 + 549081 = 4743^2 + 741^2 .

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 (23045131) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 127939 + ... + 128118.

Almost surely, 223045130 is an apocalyptic number.

23045130 is an abundant number, since it is smaller than the sum of its proper divisors (36872442).

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

23045130 is a wasteful number, since it uses less digits than its factorization.

23045130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256070 (or 256067 counting only the distinct ones).

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

The square root of 23045130 is about 4800.5343452578. The cubic root of 23045130 is about 284.5725818460.

Adding to 23045130 its reverse (3154032), we get a palindrome (26199162).

The spelling of 23045130 in words is "twenty-three million, forty-five thousand, one hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 256057 512114 768171 1280285 1536342 2304513 2560570 3840855 4609026 7681710 11522565 23045130