Base | Representation |
---|---|
bin | 111101000001000000… |
… | …0010000011001000100 |
3 | 110112012201021222020021 |
4 | 1322002000100121010 |
5 | 4121322202432400 |
6 | 140105554144524 |
7 | 12316022451421 |
oct | 1720200203104 |
9 | 415181258207 |
10 | 131030124100 |
11 | 5062a0a8667 |
12 | 21489882144 |
13 | c48242b315 |
14 | 64b0218d48 |
15 | 361d4e571a |
hex | 1e82010644 |
131030124100 has 18 divisors (see below), whose sum is σ = 284335369514. Its totient is φ = 52412049600.
The previous prime is 131030124073. The next prime is 131030124109. The reversal of 131030124100 is 1421030131.
It can be written as a sum of positive squares in 3 ways, for example, as 42364342276 + 88665781824 = 205826^2 + 297768^2 .
It is a super-2 number, since 2×1310301241002 (a number of 23 digits) contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (131030124109) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 655150521 + ... + 655150720.
Almost surely, 2131030124100 is an apocalyptic number.
131030124100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
131030124100 is an abundant number, since it is smaller than the sum of its proper divisors (153305245414).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
131030124100 is a wasteful number, since it uses less digits than its factorization.
131030124100 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1310301255 (or 1310301248 counting only the distinct ones).
The product of its (nonzero) digits is 72, while the sum is 16.
Adding to 131030124100 its reverse (1421030131), we get a palindrome (132451154231).
The spelling of 131030124100 in words is "one hundred thirty-one billion, thirty million, one hundred twenty-four thousand, one hundred".
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