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84028473 = 3235326449
BaseRepresentation
bin1010000001000…
…10110000111001
312212010002101200
411000202300321
5133002402343
612201004413
72040141654
oct500426071
9185102350
1084028473
1143482921
1224183709
1314540bb9
14b23489b
15759c4d3
hex5022c39

84028473 has 12 divisors (see below), whose sum is σ = 121722900. Its totient is φ = 55858176.

The previous prime is 84028471. The next prime is 84028489. The reversal of 84028473 is 37482048.

It can be written as a sum of positive squares in 2 ways, for example, as 19820304 + 64208169 = 4452^2 + 8013^2 .

It is not a de Polignac number, because 84028473 - 21 = 84028471 is a prime.

It is not an unprimeable number, because it can be changed into a prime (84028471) 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, 10048 + ... + 16401.

It is an arithmetic number, because the mean of its divisors is an integer number (10143575).

Almost surely, 284028473 is an apocalyptic number.

It is an amenable number.

84028473 is a deficient number, since it is larger than the sum of its proper divisors (37694427).

84028473 is a wasteful number, since it uses less digits than its factorization.

84028473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26808 (or 26805 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 36.

The square root of 84028473 is about 9166.7045878004. The cubic root of 84028473 is about 438.0013917514.

The spelling of 84028473 in words is "eighty-four million, twenty-eight thousand, four hundred seventy-three".

Divisors: 1 3 9 353 1059 3177 26449 79347 238041 9336497 28009491 84028473