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84215046 = 2345730713
BaseRepresentation
bin1010000010100…
…00010100000110
312212110120022210
411001100110012
5133024340141
612205004250
72041546626
oct501202406
9185416283
1084215046
11435a0013
1224253686
13145a7ab6
14b282886
1575d7916
hex5050506

84215046 has 16 divisors (see below), whose sum is σ = 168804144. Its totient is φ = 28009344.

The previous prime is 84214993. The next prime is 84215069. The reversal of 84215046 is 64051248.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12615 + ... + 18098.

It is an arithmetic number, because the mean of its divisors is an integer number (10550259).

Almost surely, 284215046 is an apocalyptic number.

84215046 is an abundant number, since it is smaller than the sum of its proper divisors (84589098).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

84215046 is a wasteful number, since it uses less digits than its factorization.

84215046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31175.

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 84215046 is about 9176.8756121024. The cubic root of 84215046 is about 438.3253249110.

The spelling of 84215046 in words is "eighty-four million, two hundred fifteen thousand, forty-six".