Base | Representation |
---|---|
bin | 110111111011010000… |
… | …1111101000100100111 |
3 | 102110222222201221221012 |
4 | 1233312201331010213 |
5 | 3431431123304111 |
6 | 131101232212435 |
7 | 11451123652451 |
oct | 1576641750447 |
9 | 373888657835 |
10 | 120100213031 |
11 | 46a30491707 |
12 | 1b33939a11b |
13 | b42cba3b16 |
14 | 5b547912d1 |
15 | 31cdb9d48b |
hex | 1bf687d127 |
120100213031 has 8 divisors (see below), whose sum is σ = 121912036080. Its totient is φ = 118288957248.
The previous prime is 120100213027. The next prime is 120100213033. The reversal of 120100213031 is 130312001021.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 120100213031 - 22 = 120100213027 is a prime.
It is a super-2 number, since 2×1201002130312 (a number of 23 digits) contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 120100212997 and 120100213015.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (120100213033) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 294875 + ... + 571971.
It is an arithmetic number, because the mean of its divisors is an integer number (15239004510).
Almost surely, 2120100213031 is an apocalyptic number.
120100213031 is a deficient number, since it is larger than the sum of its proper divisors (1811823049).
120100213031 is an equidigital number, since it uses as much as digits as its factorization.
120100213031 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 283633.
The product of its (nonzero) digits is 36, while the sum is 14.
Adding to 120100213031 its reverse (130312001021), we get a palindrome (250412214052).
The spelling of 120100213031 in words is "one hundred twenty billion, one hundred million, two hundred thirteen thousand, thirty-one".
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