Base | Representation |
---|---|
bin | 1110001100000010111011… |
… | …00111001110010001010110 |
3 | 11002110201012111012110022200 |
4 | 13012001131213032101112 |
5 | 13042141014012020202 |
6 | 150205102513105330 |
7 | 6400066235516262 |
oct | 706013547162126 |
9 | 132421174173280 |
10 | 31200213001302 |
11 | 9a39a32940184 |
12 | 35ba988258246 |
13 | 1454223bb3c17 |
14 | 79c153cbd0a2 |
15 | 3918c853ae1c |
hex | 1c605d9ce456 |
31200213001302 has 24 divisors (see below), whose sum is σ = 69931511900640. Its totient is φ = 10041447862320.
The previous prime is 31200213001301. The next prime is 31200213001339. The reversal of 31200213001302 is 20310031200213.
31200213001302 is a `hidden beast` number, since 31 + 200 + 2 + 1 + 300 + 130 + 2 = 666.
It is a super-2 number, since 2×312002130013022 (a number of 28 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (31200213001301) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29885260974 + ... + 29885262017.
It is an arithmetic number, because the mean of its divisors is an integer number (2913812995860).
Almost surely, 231200213001302 is an apocalyptic number.
31200213001302 is an abundant number, since it is smaller than the sum of its proper divisors (38731298899338).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
31200213001302 is a wasteful number, since it uses less digits than its factorization.
31200213001302 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 59770523028 (or 59770523025 counting only the distinct ones).
The product of its (nonzero) digits is 216, while the sum is 18.
Adding to 31200213001302 its reverse (20310031200213), we get a palindrome (51510244201515).
The spelling of 31200213001302 in words is "thirty-one trillion, two hundred billion, two hundred thirteen million, one thousand, three hundred two".
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