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44128807 = 295328711
BaseRepresentation
bin1010100001010…
…1101000100111
310002000222100021
42220111220213
542244110212
64213500011
71044042262
oct250255047
9102028307
1044128807
1122a00698
1212941607
1391b0c28
145c09cd9
153d1a307
hex2a15a27

44128807 has 8 divisors (see below), whose sum is σ = 46513440. Its totient is φ = 41801760.

The previous prime is 44128783. The next prime is 44128853. The reversal of 44128807 is 70882144.

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

It is a de Polignac number, because none of the positive numbers 2k-44128807 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44128867) 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, 12819 + ... + 15892.

It is an arithmetic number, because the mean of its divisors is an integer number (5814180).

Almost surely, 244128807 is an apocalyptic number.

44128807 is a deficient number, since it is larger than the sum of its proper divisors (2384633).

44128807 is a wasteful number, since it uses less digits than its factorization.

44128807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28793.

The product of its (nonzero) digits is 14336, while the sum is 34.

The square root of 44128807 is about 6642.9516782828. The cubic root of 44128807 is about 353.3789930511.

The spelling of 44128807 in words is "forty-four million, one hundred twenty-eight thousand, eight hundred seven".

Divisors: 1 29 53 1537 28711 832619 1521683 44128807