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8144045 = 572132557
BaseRepresentation
bin11111000100010010101101
3120022202112022
4133010102231
54041102140
6450315525
7126136400
oct37042255
916282468
108144045
114662818
122888ba5
1318c1b80
14111dd37
15aad0b5
hex7c44ad

8144045 has 24 divisors (see below), whose sum is σ = 12247704. Its totient is φ = 5152896.

The previous prime is 8144039. The next prime is 8144053. The reversal of 8144045 is 5404418.

It can be written as a sum of positive squares in 4 ways, for example, as 67081 + 8076964 = 259^2 + 2842^2 .

It is not a de Polignac number, because 8144045 - 24 = 8144029 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1907 + ... + 4463.

It is an arithmetic number, because the mean of its divisors is an integer number (510321).

Almost surely, 28144045 is an apocalyptic number.

It is an amenable number.

8144045 is a deficient number, since it is larger than the sum of its proper divisors (4103659).

8144045 is a wasteful number, since it uses less digits than its factorization.

8144045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2589 (or 2582 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 26.

The square root of 8144045 is about 2853.7773213760. Note that the first 3 decimals coincide. The cubic root of 8144045 is about 201.1932417130.

The spelling of 8144045 in words is "eight million, one hundred forty-four thousand, forty-five".

Divisors: 1 5 7 13 35 49 65 91 245 455 637 2557 3185 12785 17899 33241 89495 125293 166205 232687 626465 1163435 1628809 8144045