Base | Representation |
---|---|
bin | 111101000000001000… |
… | …1001100100000011000 |
3 | 110112010200111211110200 |
4 | 1322000101030200120 |
5 | 4121242224311300 |
6 | 140103034142200 |
7 | 12315220133304 |
oct | 1720021144030 |
9 | 415120454420 |
10 | 131001010200 |
11 | 50614722995 |
12 | 2147bb81960 |
13 | c4793a6768 |
14 | 64aa3dad04 |
15 | 361ab94200 |
hex | 1e8044c818 |
131001010200 has 72 divisors (see below), whose sum is σ = 439945065300. Its totient is φ = 34933602240.
The previous prime is 131001010199. The next prime is 131001010219. The reversal of 131001010200 is 2010100131.
It is a tau number, because it is divible by the number of its divisors (72).
It is a super-2 number, since 2×1310010102002 (a number of 23 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (9).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 36387370 + ... + 36390969.
Almost surely, 2131001010200 is an apocalyptic number.
131001010200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
131001010200 is an abundant number, since it is smaller than the sum of its proper divisors (308944055100).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
131001010200 is a wasteful number, since it uses less digits than its factorization.
131001010200 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 72778361 (or 72778349 counting only the distinct ones).
The product of its (nonzero) digits is 6, while the sum is 9.
Adding to 131001010200 its reverse (2010100131), we get a palindrome (133011110331).
The spelling of 131001010200 in words is "one hundred thirty-one billion, one million, ten thousand, two hundred".
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