Base | Representation |
---|---|
bin | 101111111101101110… |
… | …1011000011001011011 |
3 | 100211212110101010111221 |
4 | 1133323131120121123 |
5 | 3141422233444011 |
6 | 115152520232511 |
7 | 10304340214210 |
oct | 1377335303133 |
9 | 324773333457 |
10 | 103003031131 |
11 | 3a757586910 |
12 | 17b6760b737 |
13 | 9936a15840 |
14 | 4db1c15b07 |
15 | 2a2cbcb971 |
hex | 17fb75865b |
103003031131 has 32 divisors (see below), whose sum is σ = 138328598016. Its totient is φ = 74071584000.
The previous prime is 103003031099. The next prime is 103003031149. The reversal of 103003031131 is 131130300301.
It is a cyclic number.
It is not a de Polignac number, because 103003031131 - 25 = 103003031099 is a prime.
It is a super-2 number, since 2×1030030311312 (a number of 23 digits) contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (103003431131) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6118716 + ... + 6135526.
It is an arithmetic number, because the mean of its divisors is an integer number (4322768688).
Almost surely, 2103003031131 is an apocalyptic number.
103003031131 is a gapful number since it is divisible by the number (11) formed by its first and last digit.
103003031131 is a deficient number, since it is larger than the sum of its proper divisors (35325566885).
103003031131 is a wasteful number, since it uses less digits than its factorization.
103003031131 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 22963.
The product of its (nonzero) digits is 81, while the sum is 16.
Adding to 103003031131 its reverse (131130300301), we get a palindrome (234133331432).
The spelling of 103003031131 in words is "one hundred three billion, three million, thirty-one thousand, one hundred thirty-one".
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