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8045457 = 372229239
BaseRepresentation
bin11110101100001110010001
3120010202021220
4132230032101
54024423312
6444235253
7125246100
oct36541621
916122256
108045457
1145a5742
12283bb29
131889034
1410d6037
15a8dc8c
hex7ac391

8045457 has 24 divisors (see below), whose sum is σ = 12585600. Its totient is φ = 4558176.

The previous prime is 8045447. The next prime is 8045483. The reversal of 8045457 is 7545408.

8045457 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 8045457 - 26 = 8045393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8045447) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33544 + ... + 33782.

It is an arithmetic number, because the mean of its divisors is an integer number (524400).

Almost surely, 28045457 is an apocalyptic number.

It is an amenable number.

8045457 is a deficient number, since it is larger than the sum of its proper divisors (4540143).

8045457 is a wasteful number, since it uses less digits than its factorization.

8045457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 485 (or 478 counting only the distinct ones).

The product of its (nonzero) digits is 22400, while the sum is 33.

The square root of 8045457 is about 2836.4514802831. The cubic root of 8045457 is about 200.3780931109.

The spelling of 8045457 in words is "eight million, forty-five thousand, four hundred fifty-seven".

Divisors: 1 3 7 21 49 147 229 239 687 717 1603 1673 4809 5019 11221 11711 33663 35133 54731 164193 383117 1149351 2681819 8045457