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3081121703 = 1113115713619
BaseRepresentation
bin1011011110100110…
…0010111110100111
321221201200012101122
42313221202332213
522302231343303
61225423044155
7136232050052
oct26751427647
97851605348
103081121703
111341238380
1271ba4065b
133a144834a
142132c1a99
15130769e38
hexb7a62fa7

3081121703 has 16 divisors (see below), whose sum is σ = 3408704640. Its totient is φ = 2761730400.

The previous prime is 3081121679. The next prime is 3081121711. The reversal of 3081121703 is 3071211803.

It is not a de Polignac number, because 3081121703 - 220 = 3080073127 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3081121783) 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, 219428 + ... + 233046.

It is an arithmetic number, because the mean of its divisors is an integer number (213044040).

Almost surely, 23081121703 is an apocalyptic number.

3081121703 is a deficient number, since it is larger than the sum of its proper divisors (327582937).

3081121703 is a wasteful number, since it uses less digits than its factorization.

3081121703 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13918.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 3081121703 is about 55507.8526246512. The cubic root of 3081121703 is about 1455.1338749371.

The spelling of 3081121703 in words is "three billion, eighty-one million, one hundred twenty-one thousand, seven hundred three".

Divisors: 1 11 131 157 1441 1727 13619 20567 149809 226237 1784089 2138183 19624979 23520013 280101973 3081121703