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84654057 = 3435411213
BaseRepresentation
bin1010000101110…
…11011111101001
312220021212112110
411002323133221
5133132412212
612222232533
72045355555
oct502733751
9186255473
1084654057
114386a934
1224425749
13146cc877
14b358865
157672a3c
hex50bb7e9

84654057 has 16 divisors (see below), whose sum is σ = 115805888. Its totient is φ = 54976320.

The previous prime is 84654049. The next prime is 84654071. The reversal of 84654057 is 75045648.

It is not a de Polignac number, because 84654057 - 23 = 84654049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84654047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69183 + ... + 70395.

It is an arithmetic number, because the mean of its divisors is an integer number (7237868).

Almost surely, 284654057 is an apocalyptic number.

It is an amenable number.

84654057 is a deficient number, since it is larger than the sum of its proper divisors (31151831).

84654057 is a wasteful number, since it uses less digits than its factorization.

84654057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1800.

The product of its (nonzero) digits is 134400, while the sum is 39.

The square root of 84654057 is about 9200.7639356740. The cubic root of 84654057 is about 439.0856650020.

The spelling of 84654057 in words is "eighty-four million, six hundred fifty-four thousand, fifty-seven".

Divisors: 1 3 43 129 541 1213 1623 3639 23263 52159 69789 156477 656233 1968699 28218019 84654057