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83137910 = 258313791
BaseRepresentation
bin1001111010010…
…01010101110110
312210102211202212
410331021111312
5132240403120
612125533422
72026442402
oct475112566
9183384685
1083137910
1142a24819
1223a14272
13142bb73b
14b082102
1574736c5
hex4f49576

83137910 has 8 divisors (see below), whose sum is σ = 149648256. Its totient is φ = 33255160.

The previous prime is 83137909. The next prime is 83137913. The reversal of 83137910 is 1973138.

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 (83137913) 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, 4156886 + ... + 4156905.

It is an arithmetic number, because the mean of its divisors is an integer number (18706032).

Almost surely, 283137910 is an apocalyptic number.

83137910 is a deficient number, since it is larger than the sum of its proper divisors (66510346).

83137910 is a wasteful number, since it uses less digits than its factorization.

83137910 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8313798.

The product of its (nonzero) digits is 4536, while the sum is 32.

The square root of 83137910 is about 9117.9992322878. Note that the first 3 decimals coincide. The cubic root of 83137910 is about 436.4485291089.

The spelling of 83137910 in words is "eighty-three million, one hundred thirty-seven thousand, nine hundred ten".

Divisors: 1 2 5 10 8313791 16627582 41568955 83137910