Base | Representation |
---|---|
bin | 11000111101101001… |
… | …11101000100111111 |
3 | 1021121000102020000020 |
4 | 30132310331010333 |
5 | 204421414200111 |
6 | 10053513303223 |
7 | 653054653635 |
oct | 143664750477 |
9 | 37530366006 |
10 | 13402100031 |
11 | 5758155131 |
12 | 2720404b13 |
13 | 135779a108 |
14 | 911d19355 |
15 | 5368cc906 |
hex | 31ed3d13f |
13402100031 has 8 divisors (see below), whose sum is σ = 17870700720. Its totient is φ = 8934116352.
The previous prime is 13402100021. The next prime is 13402100081. The reversal of 13402100031 is 13000120431.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 13402100031 - 218 = 13401837887 is a prime.
It is a super-2 number, since 2×134021000312 (a number of 21 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13402100021) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100936 + ... + 192333.
It is an arithmetic number, because the mean of its divisors is an integer number (2233837590).
Almost surely, 213402100031 is an apocalyptic number.
13402100031 is a deficient number, since it is larger than the sum of its proper divisors (4468600689).
13402100031 is a wasteful number, since it uses less digits than its factorization.
13402100031 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 308505.
The product of its (nonzero) digits is 72, while the sum is 15.
Adding to 13402100031 its reverse (13000120431), we get a palindrome (26402220462).
The spelling of 13402100031 in words is "thirteen billion, four hundred two million, one hundred thousand, thirty-one".
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