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23043525 = 3521132719
BaseRepresentation
bin101011111100…
…1110111000101
31121100201202220
41113321313011
521344343100
62141522553
7366603201
oct127716705
947321686
1023043525
1112009a3a
127873459
134a0a82b
1430bbb01
152052aa0
hex15f9dc5

23043525 has 24 divisors (see below), whose sum is σ = 38449920. Its totient is φ = 12176640.

The previous prime is 23043497. The next prime is 23043529. The reversal of 23043525 is 52534032.

It is not a de Polignac number, because 23043525 - 28 = 23043269 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23043495 and 23043504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23043529) 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, 7116 + ... + 9834.

It is an arithmetic number, because the mean of its divisors is an integer number (1602080).

Almost surely, 223043525 is an apocalyptic number.

23043525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23043525 is a deficient number, since it is larger than the sum of its proper divisors (15406395).

23043525 is a wasteful number, since it uses less digits than its factorization.

23043525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2845 (or 2840 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 24.

The square root of 23043525 is about 4800.3671734566. The cubic root of 23043525 is about 284.5659752499.

Adding to 23043525 its reverse (52534032), we get a palindrome (75577557).

The spelling of 23043525 in words is "twenty-three million, forty-three thousand, five hundred twenty-five".

Divisors: 1 3 5 15 25 75 113 339 565 1695 2719 2825 8157 8475 13595 40785 67975 203925 307247 921741 1536235 4608705 7681175 23043525