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85051033 = 232433739
BaseRepresentation
bin1010001000111…
…00011010011001
312221001001002021
411010130122121
5133233113113
612234534441
72051631124
oct504343231
9187031067
1085051033
1144011111
1224597421
131480b472
14b41d3bb
15770048d
hex511c699

85051033 has 12 divisors (see below), whose sum is σ = 91001680. Its totient is φ = 79439976.

The previous prime is 85051027. The next prime is 85051067. The reversal of 85051033 is 33015058.

It is a happy number.

It is not a de Polignac number, because 85051033 - 221 = 82953881 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 85050989 and 85051007.

It is not an unprimeable number, because it can be changed into a prime (85051133) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20878 + ... + 24616.

Almost surely, 285051033 is an apocalyptic number.

It is an amenable number.

85051033 is a deficient number, since it is larger than the sum of its proper divisors (5950647).

85051033 is a wasteful number, since it uses less digits than its factorization.

85051033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3828 (or 3805 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 85051033 is about 9222.3116950144. The cubic root of 85051033 is about 439.7709431052.

The spelling of 85051033 in words is "eighty-five million, fifty-one thousand, thirty-three".

Divisors: 1 23 43 529 989 3739 22747 85997 160777 1977931 3697871 85051033