Base | Representation |
---|---|
bin | 11001111001010110… |
… | …00000101110101111 |
3 | 1022212220120221000001 |
4 | 30330223000232233 |
5 | 211433104410111 |
6 | 10215321245131 |
7 | 1001344635565 |
oct | 147453005657 |
9 | 38786527001 |
10 | 13902810031 |
11 | 5994856a50 |
12 | 28400337a7 |
13 | 1407440416 |
14 | 95c617a35 |
15 | 5658361c1 |
hex | 33cac0baf |
13902810031 has 4 divisors (see below), whose sum is σ = 15166701864. Its totient is φ = 12638918200.
The previous prime is 13902810029. The next prime is 13902810067. The reversal of 13902810031 is 13001820931.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13001820931 = 11 ⋅1181983721.
It is a cyclic number.
It is not a de Polignac number, because 13902810031 - 21 = 13902810029 is a prime.
It is a super-2 number, since 2×139028100312 (a number of 21 digits) contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13902810931) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 631945900 + ... + 631945921.
It is an arithmetic number, because the mean of its divisors is an integer number (3791675466).
Almost surely, 213902810031 is an apocalyptic number.
13902810031 is a gapful number since it is divisible by the number (11) formed by its first and last digit.
13902810031 is a deficient number, since it is larger than the sum of its proper divisors (1263891833).
13902810031 is a wasteful number, since it uses less digits than its factorization.
13902810031 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1263891832.
The product of its (nonzero) digits is 1296, while the sum is 28.
The spelling of 13902810031 in words is "thirteen billion, nine hundred two million, eight hundred ten thousand, thirty-one".
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