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23132045 = 531149239
BaseRepresentation
bin101100000111…
…1011110001101
31121112020012102
41120033132031
521410211140
62143444445
7400422236
oct130173615
947466172
1023132045
111206a4a2
1278b6725
134a3bc01
14310208d
15206de15
hex160f78d

23132045 has 8 divisors (see below), whose sum is σ = 28654080. Its totient is φ = 17908560.

The previous prime is 23132041. The next prime is 23132099. The reversal of 23132045 is 54023132.

It is a happy number.

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

It is not a de Polignac number, because 23132045 - 22 = 23132041 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23132041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74465 + ... + 74774.

It is an arithmetic number, because the mean of its divisors is an integer number (3581760).

Almost surely, 223132045 is an apocalyptic number.

It is an amenable number.

23132045 is a deficient number, since it is larger than the sum of its proper divisors (5522035).

23132045 is a wasteful number, since it uses less digits than its factorization.

23132045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149275.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 23132045 is about 4809.5784638573. The cubic root of 23132045 is about 284.9298893920.

Adding to 23132045 its reverse (54023132), we get a palindrome (77155177).

The spelling of 23132045 in words is "twenty-three million, one hundred thirty-two thousand, forty-five".

Divisors: 1 5 31 155 149239 746195 4626409 23132045