Base | Representation |
---|---|
bin | 11000011101010101… |
… | …10111011101000111 |
3 | 1020220010022221020220 |
4 | 30032222313131013 |
5 | 203343020120403 |
6 | 10010551155423 |
7 | 643253554305 |
oct | 141652673507 |
9 | 36803287226 |
10 | 13131020103 |
11 | 5629133833 |
12 | 2665675b73 |
13 | 13135868a6 |
14 | 8c7d13275 |
15 | 51cbd2953 |
hex | 30eab7747 |
13131020103 has 8 divisors (see below), whose sum is σ = 17935052016. Its totient is φ = 8540500800.
The previous prime is 13131020087. The next prime is 13131020107. The reversal of 13131020103 is 30102013131.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 13131020103 - 24 = 13131020087 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13131020107) 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, 53378008 + ... + 53378253.
It is an arithmetic number, because the mean of its divisors is an integer number (2241881502).
Almost surely, 213131020103 is an apocalyptic number.
13131020103 is a deficient number, since it is larger than the sum of its proper divisors (4804031913).
13131020103 is a wasteful number, since it uses less digits than its factorization.
13131020103 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 106756305.
The product of its (nonzero) digits is 54, while the sum is 15.
Adding to 13131020103 its reverse (30102013131), we get a palindrome (43233033234).
The spelling of 13131020103 in words is "thirteen billion, one hundred thirty-one million, twenty thousand, one hundred three".
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