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84454028 = 22171241971
BaseRepresentation
bin1010000100010…
…10101010001100
312212220201010222
411002022222030
5133110012103
612214050512
72043563441
oct502125214
9185821128
1084454028
114374361a
1224349a38
131465c7c9
14b3059c8
157633638
hex508aa8c

84454028 has 12 divisors (see below), whose sum is σ = 156488472. Its totient is φ = 39743040.

The previous prime is 84454009. The next prime is 84454033. The reversal of 84454028 is 82045448.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 620918 + ... + 621053.

It is an arithmetic number, because the mean of its divisors is an integer number (13040706).

Almost surely, 284454028 is an apocalyptic number.

It is an amenable number.

84454028 is a deficient number, since it is larger than the sum of its proper divisors (72034444).

84454028 is a wasteful number, since it uses less digits than its factorization.

84454028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1241992 (or 1241990 counting only the distinct ones).

The product of its (nonzero) digits is 40960, while the sum is 35.

The square root of 84454028 is about 9189.8872680790. The cubic root of 84454028 is about 438.7395538675.

It can be divided in two parts, 844 and 54028, that added together give a cube (54872 = 383).

The spelling of 84454028 in words is "eighty-four million, four hundred fifty-four thousand, twenty-eight".

Divisors: 1 2 4 17 34 68 1241971 2483942 4967884 21113507 42227014 84454028