Base | Representation |
---|---|
bin | 10010101011110100… |
… | …00010001000010110 |
3 | 221220002111022121110 |
4 | 21111322002020112 |
5 | 131020442223110 |
6 | 4335215355450 |
7 | 503403613131 |
oct | 112572021026 |
9 | 27802438543 |
10 | 10031211030 |
11 | 42883a2355 |
12 | 1b3b522b86 |
13 | c3b2c7739 |
14 | 6b2369218 |
15 | 3da9c5a20 |
hex | 255e82216 |
10031211030 has 64 divisors (see below), whose sum is σ = 25313637888. Its totient is φ = 2539130880.
The previous prime is 10031211017. The next prime is 10031211061. The reversal of 10031211030 is 3011213001.
It is a junction number, because it is equal to n+sod(n) for n = 10031210997 and 10031211015.
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, 34902 + ... + 145878.
It is an arithmetic number, because the mean of its divisors is an integer number (395525592).
Almost surely, 210031211030 is an apocalyptic number.
10031211030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is a practical number, because each smaller number is the sum of distinct divisors of 10031211030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12656818944).
10031211030 is an abundant number, since it is smaller than the sum of its proper divisors (15282426858).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
10031211030 is a wasteful number, since it uses less digits than its factorization.
10031211030 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 111141.
The product of its (nonzero) digits is 18, while the sum is 12.
Adding to 10031211030 its reverse (3011213001), we get a palindrome (13042424031).
The spelling of 10031211030 in words is "ten billion, thirty-one million, two hundred eleven thousand, thirty".
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