Base | Representation |
---|---|
bin | 111101000000011010… |
… | …0010111110000100010 |
3 | 110112011022212022111000 |
4 | 1322000310113300202 |
5 | 4121302104400310 |
6 | 140104003532430 |
7 | 12315361410126 |
oct | 1720064276042 |
9 | 415138768430 |
10 | 131010231330 |
11 | 50619950960 |
12 | 2148308a116 |
13 | c47b284954 |
14 | 64ab71b586 |
15 | 361b8b64c0 |
hex | 1e80d17c22 |
131010231330 has 128 divisors (see below), whose sum is σ = 381574851840. Its totient is φ = 31722209280.
The previous prime is 131010231311. The next prime is 131010231337. The reversal of 131010231330 is 33132010131.
It is a happy number.
131010231330 is a `hidden beast` number, since 1 + 3 + 101 + 0 + 231 + 330 = 666.
It is a super-2 number, since 2×1310102313302 (a number of 23 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is not an unprimeable number, because it can be changed into a prime (131010231337) by changing a digit.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2507554 + ... + 2559266.
It is an arithmetic number, because the mean of its divisors is an integer number (2981053530).
Almost surely, 2131010231330 is an apocalyptic number.
131010231330 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 131010231330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (190787425920).
131010231330 is an abundant number, since it is smaller than the sum of its proper divisors (250564620510).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
131010231330 is a wasteful number, since it uses less digits than its factorization.
131010231330 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 52593 (or 52587 counting only the distinct ones).
The product of its (nonzero) digits is 162, while the sum is 18.
Adding to 131010231330 its reverse (33132010131), we get a palindrome (164142241461).
The spelling of 131010231330 in words is "one hundred thirty-one billion, ten million, two hundred thirty-one thousand, three hundred thirty".
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