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45043808 = 251407619
BaseRepresentation
bin1010101111010…
…1000001100000
310010202110111012
42223311001200
543012400213
64245240052
71054603025
oct253650140
9103673435
1045043808
1123476097
1213103028
139441554
145da754c
153e4b4a8
hex2af5060

45043808 has 12 divisors (see below), whose sum is σ = 88680060. Its totient is φ = 22521888.

The previous prime is 45043807. The next prime is 45043877. The reversal of 45043808 is 80834054.

It is a Harshad number since it is a multiple of its sum of digits (32), and also a Moran number because the ratio is a prime number: 1407619 = 45043808 / (4 + 5 + 0 + 4 + 3 + 8 + 0 + 8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45043807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 703778 + ... + 703841.

It is an arithmetic number, because the mean of its divisors is an integer number (7390005).

Almost surely, 245043808 is an apocalyptic number.

It is an amenable number.

45043808 is a deficient number, since it is larger than the sum of its proper divisors (43636252).

45043808 is a wasteful number, since it uses less digits than its factorization.

45043808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1407629 (or 1407621 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 32.

The square root of 45043808 is about 6711.4683937273. The cubic root of 45043808 is about 355.8047155193.

It can be divided in two parts, 450 and 43808, that multiplied together give a square (19713600 = 44402).

The spelling of 45043808 in words is "forty-five million, forty-three thousand, eight hundred eight".

Divisors: 1 2 4 8 16 32 1407619 2815238 5630476 11260952 22521904 45043808