Base | Representation |
---|---|
bin | 101111111110001111… |
… | …0001110110010011011 |
3 | 100211220122100211010120 |
4 | 1133330132032302123 |
5 | 3141441111444011 |
6 | 115154324444323 |
7 | 10304634546663 |
oct | 1377436166233 |
9 | 324818324116 |
10 | 103020031131 |
11 | 3a7661381a6 |
12 | 17b712496a3 |
13 | 993a3b8604 |
14 | 4db419d1a3 |
15 | 2a2e438a06 |
hex | 17fc78ec9b |
103020031131 has 8 divisors (see below), whose sum is σ = 138693634560. Its totient is φ = 68013224232.
The previous prime is 103020031129. The next prime is 103020031159. The reversal of 103020031131 is 131130020301.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 103020031131 - 21 = 103020031129 is a prime.
It is a super-2 number, since 2×1030200311312 (a number of 23 digits) contains 22 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 103020031131.
It is not an unprimeable number, because it can be changed into a prime (103022031131) 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, 166698771 + ... + 166699388.
It is an arithmetic number, because the mean of its divisors is an integer number (17336704320).
Almost surely, 2103020031131 is an apocalyptic number.
103020031131 is a deficient number, since it is larger than the sum of its proper divisors (35673603429).
103020031131 is a wasteful number, since it uses less digits than its factorization.
103020031131 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 333398265.
The product of its (nonzero) digits is 54, while the sum is 15.
Adding to 103020031131 its reverse (131130020301), we get a palindrome (234150051432).
The spelling of 103020031131 in words is "one hundred three billion, twenty million, thirty-one thousand, one hundred thirty-one".
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