Base | Representation |
---|---|
bin | 10010101111011000… |
… | …100100100010111011 |
3 | 1220221100200221001002 |
4 | 102233120210202323 |
5 | 312202303320011 |
6 | 13124415115215 |
7 | 1311435632051 |
oct | 225730444273 |
9 | 56840627032 |
10 | 20122323131 |
11 | 8596588219 |
12 | 3a96b12b0b |
13 | 1b88b360a1 |
14 | d8c6481d1 |
15 | 7cb87ec3b |
hex | 4af6248bb |
20122323131 has 8 divisors (see below), whose sum is σ = 20181952560. Its totient is φ = 20062724832.
The previous prime is 20122323113. The next prime is 20122323161. The reversal of 20122323131 is 13132322102.
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 20122323131 - 214 = 20122306747 is a prime.
It is a super-2 number, since 2×201223231312 (a number of 21 digits) contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (20122323101) 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, 2106041 + ... + 2115573.
It is an arithmetic number, because the mean of its divisors is an integer number (2522744070).
Almost surely, 220122323131 is an apocalyptic number.
20122323131 is a deficient number, since it is larger than the sum of its proper divisors (59629429).
20122323131 is an equidigital number, since it uses as much as digits as its factorization.
20122323131 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 15565.
The product of its (nonzero) digits is 432, while the sum is 20.
Adding to 20122323131 its reverse (13132322102), we get a palindrome (33254645233).
The spelling of 20122323131 in words is "twenty billion, one hundred twenty-two million, three hundred twenty-three thousand, one hundred thirty-one".
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