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83272857 = 32310711279
BaseRepresentation
bin1001111011010…
…10010010011001
312210200200212220
410331222102121
5132304212412
612132454253
72030544003
oct475522231
9183620786
1083272857
1143007148
1223a7a389
1314337ca5
14b0b9373
15749d68c
hex4f6a499

83272857 has 16 divisors (see below), whose sum is σ = 116951040. Its totient is φ = 52600592.

The previous prime is 83272853. The next prime is 83272859. The reversal of 83272857 is 75827238.

It is a cyclic number.

It is not a de Polignac number, because 83272857 - 22 = 83272853 is a prime.

It is not an unprimeable number, because it can be changed into a prime (83272853) 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, 1744 + ... + 13022.

It is an arithmetic number, because the mean of its divisors is an integer number (7309440).

Almost surely, 283272857 is an apocalyptic number.

It is an amenable number.

83272857 is a deficient number, since it is larger than the sum of its proper divisors (33678183).

83272857 is a wasteful number, since it uses less digits than its factorization.

83272857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11412.

The product of its digits is 188160, while the sum is 42.

The square root of 83272857 is about 9125.3962653684. The cubic root of 83272857 is about 436.6845449109.

The spelling of 83272857 in words is "eighty-three million, two hundred seventy-two thousand, eight hundred fifty-seven".

Divisors: 1 3 23 69 107 321 2461 7383 11279 33837 259417 778251 1206853 3620559 27757619 83272857