Base | Representation |
---|---|
bin | 1100010010110… |
… | …10101110110001 |
3 | 21012001122121201 |
4 | 12021122232301 |
5 | 202400211311 |
6 | 14122251201 |
7 | 2361415423 |
oct | 611325661 |
9 | 235048551 |
10 | 103132081 |
11 | 53240728 |
12 | 2a656b01 |
13 | 1849c300 |
14 | d9a8813 |
15 | 90c29c1 |
hex | 625abb1 |
103132081 has 12 divisors (see below), whose sum is σ = 118248012. Its totient is φ = 89596416.
The previous prime is 103132067. The next prime is 103132109. The reversal of 103132081 is 180231301.
It can be written as a sum of positive squares in 6 ways, for example, as 2310400 + 100821681 = 1520^2 + 10041^2 .
It is not a de Polignac number, because 103132081 - 27 = 103131953 is a prime.
It is a super-2 number, since 2×1031320812 = 21272452262781122, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (103132021) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15076 + ... + 20821.
It is an arithmetic number, because the mean of its divisors is an integer number (9854001).
Almost surely, 2103132081 is an apocalyptic number.
It is an amenable number.
103132081 is a deficient number, since it is larger than the sum of its proper divisors (15115931).
103132081 is a wasteful number, since it uses less digits than its factorization.
103132081 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 35940 (or 35927 counting only the distinct ones).
The product of its (nonzero) digits is 144, while the sum is 19.
The square root of 103132081 is about 10155.3966441494. The cubic root of 103132081 is about 468.9550968326.
Adding to 103132081 its reverse (180231301), we get a palindrome (283363382).
The spelling of 103132081 in words is "one hundred three million, one hundred thirty-two thousand, eighty-one".
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