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84213916 = 2261345139
BaseRepresentation
bin1010000010100…
…00000010011100
312212110111202221
411001100002130
5133024321131
612204555124
72041543423
oct501200234
9185414687
1084213916
114359a186
1224252aa4
13145a7427
14b2822ba
1575d7411
hex505009c

84213916 has 12 divisors (see below), whose sum is σ = 149790760. Its totient is φ = 41416560.

The previous prime is 84213907. The next prime is 84213917. The reversal of 84213916 is 61931248.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84213917) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 172326 + ... + 172813.

Almost surely, 284213916 is an apocalyptic number.

It is an amenable number.

84213916 is a deficient number, since it is larger than the sum of its proper divisors (65576844).

84213916 is a wasteful number, since it uses less digits than its factorization.

84213916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345204 (or 345202 counting only the distinct ones).

The product of its digits is 10368, while the sum is 34.

The square root of 84213916 is about 9176.8140441005. The cubic root of 84213916 is about 438.3233644148.

The spelling of 84213916 in words is "eighty-four million, two hundred thirteen thousand, nine hundred sixteen".

Divisors: 1 2 4 61 122 244 345139 690278 1380556 21053479 42106958 84213916