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83265620 = 2254163281
BaseRepresentation
bin1001111011010…
…00100001010100
312210200022221212
410331220201110
5132303444440
612132400552
72030513624
oct475504124
9183608855
1083265620
1143001769
1223a76158
13143348c9
14b0b6884
15749b465
hex4f68854

83265620 has 12 divisors (see below), whose sum is σ = 174857844. Its totient is φ = 33306240.

The previous prime is 83265617. The next prime is 83265647. The reversal of 83265620 is 2656238.

It can be written as a sum of positive squares in 2 ways, for example, as 65254084 + 18011536 = 8078^2 + 4244^2 .

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2081621 + ... + 2081660.

It is an arithmetic number, because the mean of its divisors is an integer number (14571487).

Almost surely, 283265620 is an apocalyptic number.

It is an amenable number.

83265620 is an abundant number, since it is smaller than the sum of its proper divisors (91592224).

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

83265620 is a wasteful number, since it uses less digits than its factorization.

83265620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4163290 (or 4163288 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 83265620 is about 9124.9997260274. Note that the first 3 decimals coincide. The cubic root of 83265620 is about 436.6718942197.

The spelling of 83265620 in words is "eighty-three million, two hundred sixty-five thousand, six hundred twenty".

Divisors: 1 2 4 5 10 20 4163281 8326562 16653124 20816405 41632810 83265620