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45232431 = 32943107113
BaseRepresentation
bin1010110010001…
…1000100101111
310011010001020020
42230203010233
543034414211
64253253223
71056316656
oct254430457
9104101206
1045232431
1123594882
1213194213
1394a936a
14601619d
153e87306
hex2b2312f

45232431 has 32 divisors (see below), whose sum is σ = 65007360. Its totient is φ = 27922944.

The previous prime is 45232367. The next prime is 45232433. The reversal of 45232431 is 13423254.

45232431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 45232431 - 26 = 45232367 is a prime.

It is a super-2 number, since 2×452324312 = 4091945628339522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45232433) 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 31 ways as a sum of consecutive naturals, for example, 400231 + ... + 400343.

It is an arithmetic number, because the mean of its divisors is an integer number (2031480).

Almost surely, 245232431 is an apocalyptic number.

45232431 is a deficient number, since it is larger than the sum of its proper divisors (19774929).

45232431 is a wasteful number, since it uses less digits than its factorization.

45232431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295.

The product of its digits is 2880, while the sum is 24.

The square root of 45232431 is about 6725.5060032685. The cubic root of 45232431 is about 356.3006733705.

Adding to 45232431 its reverse (13423254), we get a palindrome (58655685).

The spelling of 45232431 in words is "forty-five million, two hundred thirty-two thousand, four hundred thirty-one".

Divisors: 1 3 29 43 87 107 113 129 321 339 1247 3103 3277 3741 4601 4859 9309 9831 12091 13803 14577 36273 133429 140911 350639 400287 422733 519913 1051917 1559739 15077477 45232431