Base | Representation |
---|---|
bin | 11101101001001110… |
… | …101111001100000001 |
3 | 10001011022012211110200 |
4 | 131221032233030001 |
5 | 1010142020221144 |
6 | 22342252315413 |
7 | 2204532410334 |
oct | 355116571401 |
9 | 101138184420 |
10 | 31830242049 |
11 | 12554383a71 |
12 | 6203a72b69 |
13 | 3003613368 |
14 | 177d55461b |
15 | c64657c69 |
hex | 7693af301 |
31830242049 has 24 divisors (see below), whose sum is σ = 46707947520. Its totient is φ = 20884070592.
The previous prime is 31830242039. The next prime is 31830242051. The reversal of 31830242049 is 94024203813.
It is not a de Polignac number, because 31830242049 - 216 = 31830176513 is a prime.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (31830242039) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 251872 + ... + 356510.
It is an arithmetic number, because the mean of its divisors is an integer number (1946164480).
Almost surely, 231830242049 is an apocalyptic number.
It is an amenable number.
31830242049 is a deficient number, since it is larger than the sum of its proper divisors (14877705471).
31830242049 is a wasteful number, since it uses less digits than its factorization.
31830242049 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 105181 (or 105178 counting only the distinct ones).
The product of its (nonzero) digits is 41472, while the sum is 36.
The spelling of 31830242049 in words is "thirty-one billion, eight hundred thirty million, two hundred forty-two thousand, forty-nine".
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