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83036988 = 223585429
BaseRepresentation
bin1001111001100…
…00101100111100
312210020201100000
410330300230330
5132224140423
612123434300
72025542226
oct474605474
9183221300
1083036988
1142965a11
1223985990
1314284818
14b057416
157453843
hex4f30b3c

83036988 has 36 divisors (see below), whose sum is σ = 217675640. Its totient is φ = 27678672.

The previous prime is 83036983. The next prime is 83037023. The reversal of 83036988 is 88963038.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×830369882 = 13790282752224288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83036981) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41743 + ... + 43686.

Almost surely, 283036988 is an apocalyptic number.

It is an amenable number.

83036988 is an abundant number, since it is smaller than the sum of its proper divisors (134638652).

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

83036988 is a wasteful number, since it uses less digits than its factorization.

83036988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85448 (or 85434 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The square root of 83036988 is about 9112.4633332596. The cubic root of 83036988 is about 436.2718544181.

The spelling of 83036988 in words is "eighty-three million, thirty-six thousand, nine hundred eighty-eight".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 81 108 162 243 324 486 972 85429 170858 256287 341716 512574 768861 1025148 1537722 2306583 3075444 4613166 6919749 9226332 13839498 20759247 27678996 41518494 83036988