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44920431 = 324991159
BaseRepresentation
bin1010101101011…
…0111001101111
310010112012020200
42223112321233
542444423211
64242444543
71053550233
oct253267157
9103465220
1044920431
11233a1426
1213063753
1393ca34a
145d745c3
153e24b56
hex2ad6e6f

44920431 has 6 divisors (see below), whose sum is σ = 64885080. Its totient is φ = 29946948.

The previous prime is 44920397. The next prime is 44920459. The reversal of 44920431 is 13402944.

It is not a de Polignac number, because 44920431 - 211 = 44918383 is a prime.

It is a super-2 number, since 2×449204312 = 4035690242451522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 44920395 and 44920404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44920481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2495571 + ... + 2495588.

It is an arithmetic number, because the mean of its divisors is an integer number (10814180).

Almost surely, 244920431 is an apocalyptic number.

44920431 is a deficient number, since it is larger than the sum of its proper divisors (19964649).

44920431 is a wasteful number, since it uses less digits than its factorization.

44920431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4991165 (or 4991162 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 44920431 is about 6702.2705854061. The cubic root of 44920431 is about 355.4795634724.

The spelling of 44920431 in words is "forty-four million, nine hundred twenty thousand, four hundred thirty-one".

Divisors: 1 3 9 4991159 14973477 44920431