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8145918 = 2321141141
BaseRepresentation
bin11111000100101111111110
3120022212002200
4133010233332
54041132133
6450332330
7126145014
oct37045776
916285080
108145918
114664170
12288a0a6
1318c2991
1411208b4
15aad913
hex7c4bfe

8145918 has 24 divisors (see below), whose sum is σ = 19254456. Its totient is φ = 2468400.

The previous prime is 8145911. The next prime is 8145919. The reversal of 8145918 is 8195418.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8145911) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20373 + ... + 20768.

It is an arithmetic number, because the mean of its divisors is an integer number (802269).

Almost surely, 28145918 is an apocalyptic number.

8145918 is an abundant number, since it is smaller than the sum of its proper divisors (11108538).

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

8145918 is a wasteful number, since it uses less digits than its factorization.

8145918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41160 (or 41157 counting only the distinct ones).

The product of its digits is 11520, while the sum is 36.

The square root of 8145918 is about 2854.1054640640. The cubic root of 8145918 is about 201.2086642725.

The spelling of 8145918 in words is "eight million, one hundred forty-five thousand, nine hundred eighteen".

Divisors: 1 2 3 6 9 11 18 22 33 66 99 198 41141 82282 123423 246846 370269 452551 740538 905102 1357653 2715306 4072959 8145918