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84215048 = 2310526881
BaseRepresentation
bin1010000010100…
…00010100001000
312212110120022212
411001100110020
5133024340143
612205004252
72041546631
oct501202410
9185416285
1084215048
11435a0015
1224253688
13145a7ab8
14b282888
1575d7918
hex5050508

84215048 has 8 divisors (see below), whose sum is σ = 157903230. Its totient is φ = 42107520.

The previous prime is 84214993. The next prime is 84215069. The reversal of 84215048 is 84051248.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 60808804 + 23406244 = 7798^2 + 4838^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5263433 + ... + 5263448.

Almost surely, 284215048 is an apocalyptic number.

It is an amenable number.

84215048 is a deficient number, since it is larger than the sum of its proper divisors (73688182).

84215048 is a wasteful number, since it uses less digits than its factorization.

84215048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10526887 (or 10526883 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 32.

The square root of 84215048 is about 9176.8757210720. The cubic root of 84215048 is about 438.3253283809.

The spelling of 84215048 in words is "eighty-four million, two hundred fifteen thousand, forty-eight".

Divisors: 1 2 4 8 10526881 21053762 42107524 84215048