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30806163606 = 236597791139
BaseRepresentation
bin11100101100001100…
…001100000010010110
32221111221020020221110
4130230030030002112
51001042334213411
622052510555450
72140256033031
oct345414140226
987457206843
1030806163606
1112079304749
125b78b08b86
132b9c3c559a
1416c353a018
15c047bc2a6
hex72c30c096

30806163606 has 16 divisors (see below), whose sum is σ = 61705828800. Its totient is φ = 10253137608.

The previous prime is 30806163571. The next prime is 30806163617. The reversal of 30806163606 is 60636160803.

It is a super-2 number, since 2×308061636062 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3891616 + ... + 3899523.

It is an arithmetic number, because the mean of its divisors is an integer number (3856614300).

Almost surely, 230806163606 is an apocalyptic number.

30806163606 is an abundant number, since it is smaller than the sum of its proper divisors (30899665194).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30806163606 is a wasteful number, since it uses less digits than its factorization.

30806163606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7791803.

The product of its (nonzero) digits is 93312, while the sum is 39.

The spelling of 30806163606 in words is "thirty billion, eight hundred six million, one hundred sixty-three thousand, six hundred six".

Divisors: 1 2 3 6 659 1318 1977 3954 7791139 15582278 23373417 46746834 5134360601 10268721202 15403081803 30806163606