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45038660 = 2253172643
BaseRepresentation
bin1010101111001…
…1110001000100
310010202012102112
42223303301010
543012214120
64245200152
71054552022
oct253636104
9103665375
1045038660
1123472237
1213100058
13943c0c4
145da5712
153e49bc5
hex2af3c44

45038660 has 24 divisors (see below), whose sum is σ = 97633536. Its totient is φ = 17434080.

The previous prime is 45038659. The next prime is 45038663. The reversal of 45038660 is 6683054.

45038660 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (45038663) 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 7 ways as a sum of consecutive naturals, for example, 35702 + ... + 36941.

It is an arithmetic number, because the mean of its divisors is an integer number (4068064).

Almost surely, 245038660 is an apocalyptic number.

It is an amenable number.

45038660 is an abundant number, since it is smaller than the sum of its proper divisors (52594876).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

45038660 is a wasteful number, since it uses less digits than its factorization.

45038660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72683 (or 72681 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 45038660 is about 6711.0848601400. The cubic root of 45038660 is about 355.7911601789.

The spelling of 45038660 in words is "forty-five million, thirty-eight thousand, six hundred sixty".

Divisors: 1 2 4 5 10 20 31 62 124 155 310 620 72643 145286 290572 363215 726430 1452860 2251933 4503866 9007732 11259665 22519330 45038660