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83936390 = 258393639
BaseRepresentation
bin1010000000011…
…00010010000110
312211221102002012
411000030102012
5132441431030
612155014222
72036306336
oct500142206
9184842065
1083936390
114341a71a
122413a372
131450b005
14b20d0c6
157580095
hex500c486

83936390 has 8 divisors (see below), whose sum is σ = 151085520. Its totient is φ = 33574552.

The previous prime is 83936351. The next prime is 83936393. The reversal of 83936390 is 9363938.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83936393) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4196810 + ... + 4196829.

It is an arithmetic number, because the mean of its divisors is an integer number (18885690).

Almost surely, 283936390 is an apocalyptic number.

83936390 is a deficient number, since it is larger than the sum of its proper divisors (67149130).

83936390 is a wasteful number, since it uses less digits than its factorization.

83936390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8393646.

The product of its (nonzero) digits is 104976, while the sum is 41.

The square root of 83936390 is about 9161.6805226989. The cubic root of 83936390 is about 437.8413379722.

The spelling of 83936390 in words is "eighty-three million, nine hundred thirty-six thousand, three hundred ninety".

Divisors: 1 2 5 10 8393639 16787278 41968195 83936390