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83386331 = 743535227
BaseRepresentation
bin1001111100001…
…01111111011011
312210220110112122
410332011333123
5132321330311
612135131455
72031525560
oct476057733
9183813478
1083386331
1143084426
1223b13b8b
1314377832
14b108867
1574c20db
hex4f85fdb

83386331 has 16 divisors (see below), whose sum is σ = 99373824. Its totient is φ = 68481504.

The previous prime is 83386313. The next prime is 83386337. The reversal of 83386331 is 13368338.

It is not a de Polignac number, because 83386331 - 26 = 83386267 is a prime.

It is a super-2 number, since 2×833863312 = 13906560395283122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 83386291 and 83386300.

It is not an unprimeable number, because it can be changed into a prime (83386337) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13340 + ... + 18566.

It is an arithmetic number, because the mean of its divisors is an integer number (6210864).

Almost surely, 283386331 is an apocalyptic number.

83386331 is a deficient number, since it is larger than the sum of its proper divisors (15987493).

83386331 is a wasteful number, since it uses less digits than its factorization.

83386331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5330.

The product of its digits is 31104, while the sum is 35.

The square root of 83386331 is about 9131.6116321272. The cubic root of 83386331 is about 436.8828081983.

The spelling of 83386331 in words is "eighty-three million, three hundred eighty-six thousand, three hundred thirty-one".

Divisors: 1 7 43 53 301 371 2279 5227 15953 36589 224761 277031 1573327 1939217 11912333 83386331