Base | Representation |
---|---|
bin | 1100010101110110001… |
… | …1100110011011010111 |
3 | 202021021020200221001021 |
4 | 3011131203212123113 |
5 | 11433210342323111 |
6 | 241222500542011 |
7 | 21214061600206 |
oct | 3053543463327 |
9 | 667236627037 |
10 | 212023011031 |
11 | 81a1150a357 |
12 | 351120b1907 |
13 | 16cbc17c7a0 |
14 | a394bad23d |
15 | 57adc3cd71 |
hex | 315d8e66d7 |
212023011031 has 8 divisors (see below), whose sum is σ = 229593981344. Its totient is φ = 194632256160.
The previous prime is 212023011029. The next prime is 212023011043. The reversal of 212023011031 is 130110320212.
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 212023011031 - 21 = 212023011029 is a prime.
It is a super-2 number, since 2×2120230110312 (a number of 23 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 212023010996 and 212023011014.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (212023011071) 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, 45051411 + ... + 45056116.
It is an arithmetic number, because the mean of its divisors is an integer number (28699247668).
Almost surely, 2212023011031 is an apocalyptic number.
212023011031 is a deficient number, since it is larger than the sum of its proper divisors (17570970313).
212023011031 is a wasteful number, since it uses less digits than its factorization.
212023011031 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 90107721.
The product of its (nonzero) digits is 72, while the sum is 16.
Adding to 212023011031 its reverse (130110320212), we get a palindrome (342133331243).
The spelling of 212023011031 in words is "two hundred twelve billion, twenty-three million, eleven thousand, thirty-one".
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