Base | Representation |
---|---|
bin | 11101000011101011… |
… | …100011000010011101 |
3 | 2222112101210102220120 |
4 | 131003223203002131 |
5 | 1002344231312003 |
6 | 22155545505153 |
7 | 2153112556611 |
oct | 350353430235 |
9 | 88471712816 |
10 | 31200260253 |
11 | 12260808358 |
12 | 6068aa21b9 |
13 | 2c32c4ab76 |
14 | 171da05341 |
15 | c291b6853 |
hex | 743ae309d |
31200260253 has 4 divisors (see below), whose sum is σ = 41600347008. Its totient is φ = 20800173500.
The previous prime is 31200260243. The next prime is 31200260281. The reversal of 31200260253 is 35206200213.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 35206200213 = 3 ⋅11735400071.
It is a cyclic number.
It is not a de Polignac number, because 31200260253 - 214 = 31200243869 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (31200260233) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5200043373 + ... + 5200043378.
It is an arithmetic number, because the mean of its divisors is an integer number (10400086752).
Almost surely, 231200260253 is an apocalyptic number.
It is an amenable number.
31200260253 is a deficient number, since it is larger than the sum of its proper divisors (10400086755).
31200260253 is a wasteful number, since it uses less digits than its factorization.
31200260253 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 10400086754.
The product of its (nonzero) digits is 2160, while the sum is 24.
Adding to 31200260253 its reverse (35206200213), we get a palindrome (66406460466).
The spelling of 31200260253 in words is "thirty-one billion, two hundred million, two hundred sixty thousand, two hundred fifty-three".
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