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23132455 = 520392269
BaseRepresentation
bin101100000111…
…1100100100111
31121112020202121
41120033210213
521410214310
62143450411
7400423363
oct130174447
947466677
1023132455
111206a835
1278b6a07
134a3c158
1431022a3
15206e0da
hex160f927

23132455 has 8 divisors (see below), whose sum is σ = 27784800. Its totient is φ = 18488736.

The previous prime is 23132453. The next prime is 23132477. The reversal of 23132455 is 55423132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23132455 - 21 = 23132453 is a prime.

It is a super-2 number, since 2×231324552 = 1070220948654050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23132453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9061 + ... + 11329.

It is an arithmetic number, because the mean of its divisors is an integer number (3473100).

Almost surely, 223132455 is an apocalyptic number.

23132455 is a deficient number, since it is larger than the sum of its proper divisors (4652345).

23132455 is a wasteful number, since it uses less digits than its factorization.

23132455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4313.

The product of its digits is 3600, while the sum is 25.

The square root of 23132455 is about 4809.6210869465. The cubic root of 23132455 is about 284.9315727792.

Adding to 23132455 its reverse (55423132), we get a palindrome (78555587).

The spelling of 23132455 in words is "twenty-three million, one hundred thirty-two thousand, four hundred fifty-five".

Divisors: 1 5 2039 2269 10195 11345 4626491 23132455