Base | Representation |
---|---|
bin | 10110101110100110… |
… | …00011110100101111 |
3 | 1011111101021110202002 |
4 | 23113103003310233 |
5 | 144442210014211 |
6 | 5334443522515 |
7 | 611243364401 |
oct | 132723036457 |
9 | 34441243662 |
10 | 12202032431 |
11 | 51a1802626 |
12 | 244652943b |
13 | 11c5c80c44 |
14 | 83a7acb71 |
15 | 4b637c03b |
hex | 2d74c3d2f |
12202032431 has 32 divisors (see below), whose sum is σ = 13156992000. Its totient is φ = 11295426688.
The previous prime is 12202032413. The next prime is 12202032439. The reversal of 12202032431 is 13423020221.
It is a de Polignac number, because none of the positive numbers 2k-12202032431 is a prime.
It is a super-3 number, since 3×122020324313 (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12202032439) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21672956 + ... + 21673518.
It is an arithmetic number, because the mean of its divisors is an integer number (411156000).
Almost surely, 212202032431 is an apocalyptic number.
12202032431 is a deficient number, since it is larger than the sum of its proper divisors (954959569).
12202032431 is a wasteful number, since it uses less digits than its factorization.
12202032431 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 943.
The product of its (nonzero) digits is 576, while the sum is 20.
Adding to 12202032431 its reverse (13423020221), we get a palindrome (25625052652).
It can be divided in two parts, 122020 and 32431, that added together give a palindrome (154451).
The spelling of 12202032431 in words is "twelve billion, two hundred two million, thirty-two thousand, four hundred thirty-one".
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