Base | Representation |
---|---|
bin | 10110100101011011… |
… | …11110010000010111 |
3 | 1011022000201001102111 |
4 | 23102231332100113 |
5 | 144313022421211 |
6 | 5323101051451 |
7 | 606321340330 |
oct | 132255762027 |
9 | 34260631374 |
10 | 12125201431 |
11 | 51623a6332 |
12 | 2424856b87 |
13 | 11b3090105 |
14 | 8304cd287 |
15 | 4ae752421 |
hex | 2d2b7e417 |
12125201431 has 8 divisors (see below), whose sum is σ = 14672512800. Its totient is φ = 9781675008.
The previous prime is 12125201419. The next prime is 12125201449. The reversal of 12125201431 is 13410252121.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 12125201431 - 213 = 12125193239 is a prime.
It is a super-2 number, since 2×121252014312 (a number of 21 digits) contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12125201401) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50946106 + ... + 50946343.
It is an arithmetic number, because the mean of its divisors is an integer number (1834064100).
Almost surely, 212125201431 is an apocalyptic number.
12125201431 is a deficient number, since it is larger than the sum of its proper divisors (2547311369).
12125201431 is a wasteful number, since it uses less digits than its factorization.
12125201431 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 101892473.
The product of its (nonzero) digits is 480, while the sum is 22.
Adding to 12125201431 its reverse (13410252121), we get a palindrome (25535453552).
The spelling of 12125201431 in words is "twelve billion, one hundred twenty-five million, two hundred one thousand, four hundred thirty-one".
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