Base | Representation |
---|---|
bin | 11101010000001010… |
… | …110101110011000111 |
3 | 10000002000001122220011 |
4 | 131100022311303013 |
5 | 1003311401241101 |
6 | 22232432451051 |
7 | 2161235545135 |
oct | 352012656307 |
9 | 100060048804 |
10 | 31409790151 |
11 | 1235900a263 |
12 | 61070a9a87 |
13 | 2c67490a5c |
14 | 173d788755 |
15 | c3c7a4751 |
hex | 7502b5cc7 |
31409790151 has 2 divisors, whose sum is σ = 31409790152. Its totient is φ = 31409790150.
The previous prime is 31409790149. The next prime is 31409790193. The reversal of 31409790151 is 15109790413.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 31409790151 - 21 = 31409790149 is a prime.
It is a super-3 number, since 3×314097901513 (a number of 32 digits) contains 333 as substring.
Together with 31409790149, it forms a pair of twin primes.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (31409790101) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15704895075 + 15704895076.
It is an arithmetic number, because the mean of its divisors is an integer number (15704895076).
Almost surely, 231409790151 is an apocalyptic number.
31409790151 is a deficient number, since it is larger than the sum of its proper divisors (1).
31409790151 is an equidigital number, since it uses as much as digits as its factorization.
31409790151 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 34020, while the sum is 40.
The spelling of 31409790151 in words is "thirty-one billion, four hundred nine million, seven hundred ninety thousand, one hundred fifty-one".
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