Base | Representation |
---|---|
bin | 11110111001010010101… |
… | …111111000111111010010 |
3 | 21111222002122020000000001 |
4 | 132321102233320333102 |
5 | 234241103121131010 |
6 | 4303201210520214 |
7 | 306250310226442 |
oct | 36712257707722 |
9 | 7458078200001 |
10 | 2123102130130 |
11 | 749447892213 |
12 | 2a357a73606a |
13 | 1252913411a7 |
14 | 74a89bc6122 |
15 | 3a36049cc3a |
hex | 1ee52bf8fd2 |
2123102130130 has 8 divisors (see below), whose sum is σ = 3821583834252. Its totient is φ = 849240852048.
The previous prime is 2123102130077. The next prime is 2123102130131. The reversal of 2123102130130 is 310312013212.
It can be written as a sum of positive squares in 2 ways, for example, as 1704458191401 + 418643938729 = 1305549^2 + 647027^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is a super-3 number, since 3×21231021301303 (a number of 38 digits) contains 333 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 2123102130098 and 2123102130107.
It is not an unprimeable number, because it can be changed into a prime (2123102130131) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106155106497 + ... + 106155106516.
Almost surely, 22123102130130 is an apocalyptic number.
2123102130130 is a deficient number, since it is larger than the sum of its proper divisors (1698481704122).
2123102130130 is a wasteful number, since it uses less digits than its factorization.
2123102130130 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 212310213020.
The product of its (nonzero) digits is 216, while the sum is 19.
Adding to 2123102130130 its reverse (310312013212), we get a palindrome (2433414143342).
The spelling of 2123102130130 in words is "two trillion, one hundred twenty-three billion, one hundred two million, one hundred thirty thousand, one hundred thirty".
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