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84404061 = 32719107659
BaseRepresentation
bin1010000011111…
…10011101011101
312212211011121100
411001332131131
5133101412221
612213023313
72043264660
oct501763535
9185734540
1084404061
114370a025
1224324b39
1314642b41
14b2d16d7
157623926
hex507e75d

84404061 has 48 divisors (see below), whose sum is σ = 148262400. Its totient is φ = 45196704.

The previous prime is 84404051. The next prime is 84404077. The reversal of 84404061 is 16040448.

It is not a de Polignac number, because 84404061 - 213 = 84395869 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84404011) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 127750 + ... + 128408.

It is an arithmetic number, because the mean of its divisors is an integer number (3088800).

Almost surely, 284404061 is an apocalyptic number.

It is an amenable number.

84404061 is a deficient number, since it is larger than the sum of its proper divisors (63858339).

84404061 is a wasteful number, since it uses less digits than its factorization.

84404061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 798 (or 795 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 84404061 is about 9187.1682797258. The cubic root of 84404061 is about 438.6530104359.

The spelling of 84404061 in words is "eighty-four million, four hundred four thousand, sixty-one".

Divisors: 1 3 7 9 19 21 57 63 107 133 171 321 399 659 749 963 1197 1977 2033 2247 4613 5931 6099 6741 12521 13839 14231 18297 37563 41517 42693 70513 87647 112689 128079 211539 262941 493591 634617 788823 1339747 1480773 4019241 4442319 9378229 12057723 28134687 84404061