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83808331 = 197425423
BaseRepresentation
bin1001111111011…
…01000001001011
312211200220102021
410333231001023
5132423331311
612152145311
72035234105
oct477550113
9184626367
1083808331
1143342492
1224098237
1314494939
14b1b8575
157557171
hex4fed04b

83808331 has 4 divisors (see below), whose sum is σ = 84233952. Its totient is φ = 83382712.

The previous prime is 83808313. The next prime is 83808341. The reversal of 83808331 is 13380838.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 83808331 - 29 = 83807819 is a prime.

It is a super-2 number, since 2×838083312 = 14047672690011122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83808301) 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, 212515 + ... + 212908.

It is an arithmetic number, because the mean of its divisors is an integer number (21058488).

Almost surely, 283808331 is an apocalyptic number.

83808331 is a deficient number, since it is larger than the sum of its proper divisors (425621).

83808331 is a wasteful number, since it uses less digits than its factorization.

83808331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425620.

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 83808331 is about 9154.6890171103. The cubic root of 83808331 is about 437.6185579100.

The spelling of 83808331 in words is "eighty-three million, eight hundred eight thousand, three hundred thirty-one".

Divisors: 1 197 425423 83808331