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93405081 = 37111392909
BaseRepresentation
bin1011001000100…
…11111110011001
320111202110200110
411210103332121
5142402430311
613133554533
72212634010
oct544237631
9214673613
1093405081
11487a7690
1227345a49
1316474aa3
14c595a77
1583008a6
hex5913f99

93405081 has 32 divisors (see below), whose sum is σ = 156441600. Its totient is φ = 48156480.

The previous prime is 93405049. The next prime is 93405101. The reversal of 93405081 is 18050439.

It is not a de Polignac number, because 93405081 - 25 = 93405049 is a prime.

It is a super-2 number, since 2×934050812 = 17449018313233122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (93405041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30655 + ... + 33563.

It is an arithmetic number, because the mean of its divisors is an integer number (4888800).

Almost surely, 293405081 is an apocalyptic number.

It is an amenable number.

93405081 is a deficient number, since it is larger than the sum of its proper divisors (63036519).

93405081 is a wasteful number, since it uses less digits than its factorization.

93405081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3069.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 93405081 is about 9664.6304119713. The cubic root of 93405081 is about 453.7223440862.

The spelling of 93405081 in words is "ninety-three million, four hundred five thousand, eighty-one".

Divisors: 1 3 7 11 21 33 77 139 231 417 973 1529 2909 2919 4587 8727 10703 20363 31999 32109 61089 95997 223993 404351 671979 1213053 2830457 4447861 8491371 13343583 31135027 93405081