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8640054 = 233160001
BaseRepresentation
bin100000111101…
…011000110110
3121020221221000
4200331120312
54202440204
6505104130
7133303443
oct40753066
917227830
108640054
114971445
122a88046
131a36877
14120c9ca
15b5a039
hex83d636

8640054 has 16 divisors (see below), whose sum is σ = 19200240. Its totient is φ = 2880000.

The previous prime is 8640017. The next prime is 8640059. The reversal of 8640054 is 4500468.

8640054 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8640059) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79947 + ... + 80054.

It is an arithmetic number, because the mean of its divisors is an integer number (1200015).

Almost surely, 28640054 is an apocalyptic number.

8640054 is an abundant number, since it is smaller than the sum of its proper divisors (10560186).

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

8640054 is a wasteful number, since it uses less digits than its factorization.

8640054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160012 (or 160006 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 8640054 is about 2939.3968769120. The cubic root of 8640054 is about 205.1975410943.

It can be divided in two parts, 86400 and 54, that multiplied together give a square (4665600 = 21602).

The spelling of 8640054 in words is "eight million, six hundred forty thousand, fifty-four".

Divisors: 1 2 3 6 9 18 27 54 160001 320002 480003 960006 1440009 2880018 4320027 8640054