Base | Representation |
---|---|
bin | 111000110100110010… |
… | …0010001111100000111 |
3 | 102122222111100120221111 |
4 | 1301221210101330013 |
5 | 3444404212441011 |
6 | 132020534425451 |
7 | 11550010415341 |
oct | 1615144217407 |
9 | 378874316844 |
10 | 122030202631 |
11 | 47830960437 |
12 | 1b797802287 |
13 | b6799a79bc |
14 | 5c98c24291 |
15 | 3293332121 |
hex | 1c69911f07 |
122030202631 has 4 divisors (see below), whose sum is σ = 122183315352. Its totient is φ = 121877089912.
The previous prime is 122030202607. The next prime is 122030202659. The reversal of 122030202631 is 136202030221.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 136202030221 = 7369 ⋅18483109.
It is a cyclic number.
It is not a de Polignac number, because 122030202631 - 211 = 122030200583 is a prime.
It is a super-2 number, since 2×1220302026312 (a number of 23 digits) contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (122030202691) 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, 76555165 + ... + 76556758.
It is an arithmetic number, because the mean of its divisors is an integer number (30545828838).
Almost surely, 2122030202631 is an apocalyptic number.
122030202631 is a deficient number, since it is larger than the sum of its proper divisors (153112721).
122030202631 is an equidigital number, since it uses as much as digits as its factorization.
122030202631 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 153112720.
The product of its (nonzero) digits is 864, while the sum is 22.
Adding to 122030202631 its reverse (136202030221), we get a palindrome (258232232852).
The spelling of 122030202631 in words is "one hundred twenty-two billion, thirty million, two hundred two thousand, six hundred thirty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.080 sec. • engine limits •