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83002775 = 523978363
BaseRepresentation
bin1001111001010…
…00010110010111
312210011222101212
410330220112113
5132222042100
612123012035
72025340412
oct474502627
9183158355
1083002775
1142942239
122396a01b
131427208b
14b048b79
157448635
hex4f28597

83002775 has 12 divisors (see below), whose sum is σ = 103195032. Its totient is φ = 66227040.

The previous prime is 83002769. The next prime is 83002783. The reversal of 83002775 is 57720038.

It is a de Polignac number, because none of the positive numbers 2k-83002775 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5744 + ... + 14106.

It is an arithmetic number, because the mean of its divisors is an integer number (8599586).

Almost surely, 283002775 is an apocalyptic number.

83002775 is a deficient number, since it is larger than the sum of its proper divisors (20192257).

83002775 is a wasteful number, since it uses less digits than its factorization.

83002775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8770 (or 8765 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 32.

The square root of 83002775 is about 9110.5858757821. The cubic root of 83002775 is about 436.2119284351.

The spelling of 83002775 in words is "eighty-three million, two thousand, seven hundred seventy-five".

Divisors: 1 5 25 397 1985 8363 9925 41815 209075 3320111 16600555 83002775