Base | Representation |
---|---|
bin | 10010110111101111… |
… | …00000001111011110 |
3 | 222011001122212002120 |
4 | 21123313200033132 |
5 | 131222042224410 |
6 | 4353151003410 |
7 | 506026605660 |
oct | 113367401736 |
9 | 28131585076 |
10 | 10131211230 |
11 | 4329893a48 |
12 | 1b68b09566 |
13 | c55c3b35a |
14 | 6c175a530 |
15 | 3e467a570 |
hex | 25bde03de |
10131211230 has 64 divisors (see below), whose sum is σ = 28244049408. Its totient is φ = 2277740160.
The previous prime is 10131211201. The next prime is 10131211249. The reversal of 10131211230 is 3211213101.
It is a happy number.
It is a super-2 number, since 2×101312112302 (a number of 21 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (15).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 382632 + ... + 408251.
It is an arithmetic number, because the mean of its divisors is an integer number (441313272).
Almost surely, 210131211230 is an apocalyptic number.
10131211230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
10131211230 is an abundant number, since it is smaller than the sum of its proper divisors (18112838178).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
10131211230 is a wasteful number, since it uses less digits than its factorization.
10131211230 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 790961.
The product of its (nonzero) digits is 36, while the sum is 15.
Adding to 10131211230 its reverse (3211213101), we get a palindrome (13342424331).
The spelling of 10131211230 in words is "ten billion, one hundred thirty-one million, two hundred eleven thousand, two hundred thirty".
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