Base | Representation |
---|---|
bin | 111000110100010000… |
… | …0011010100101000111 |
3 | 102122221020212202002210 |
4 | 1301220200122211013 |
5 | 3444340134142411 |
6 | 132015101234503 |
7 | 11546403251313 |
oct | 1615040324507 |
9 | 378836782083 |
10 | 122012412231 |
11 | 4782190a226 |
12 | 1b791862a33 |
13 | b6760b9238 |
14 | 5c96712b43 |
15 | 32919baca6 |
hex | 1c6881a947 |
122012412231 has 16 divisors (see below), whose sum is σ = 167954853888. Its totient is φ = 78728810400.
The previous prime is 122012412217. The next prime is 122012412239. The reversal of 122012412231 is 132214210221.
It is a happy number.
It is not a de Polignac number, because 122012412231 - 25 = 122012412199 is a prime.
It is a super-2 number, since 2×1220124122312 (a number of 23 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 122012412198 and 122012412207.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (122012412239) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2856315 + ... + 2898716.
It is an arithmetic number, because the mean of its divisors is an integer number (10497178368).
Almost surely, 2122012412231 is an apocalyptic number.
122012412231 is a deficient number, since it is larger than the sum of its proper divisors (45942441657).
122012412231 is a wasteful number, since it uses less digits than its factorization.
122012412231 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5755262.
The product of its (nonzero) digits is 384, while the sum is 21.
Adding to 122012412231 its reverse (132214210221), we get a palindrome (254226622452).
The spelling of 122012412231 in words is "one hundred twenty-two billion, twelve million, four hundred twelve thousand, two hundred thirty-one".
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