Base | Representation |
---|---|
bin | 11101010011111001… |
… | …111000101001101101 |
3 | 10000020100222022212211 |
4 | 131103321320221231 |
5 | 1003423422014003 |
6 | 22242551530421 |
7 | 2162626306252 |
oct | 352371705155 |
9 | 100210868784 |
10 | 31472454253 |
11 | 1239041a779 |
12 | 6124089a11 |
13 | 2c774614c6 |
14 | 1747c1b429 |
15 | c4303196d |
hex | 753e78a6d |
31472454253 has 8 divisors (see below), whose sum is σ = 31998839096. Its totient is φ = 30946406400.
The previous prime is 31472454239. The next prime is 31472454257. The reversal of 31472454253 is 35245427413.
It can be written as a sum of positive squares in 4 ways, for example, as 12454113604 + 19018340649 = 111598^2 + 137907^2 .
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 31472454253 - 233 = 22882519661 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (31472454257) 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, 107725 + ... + 273037.
It is an arithmetic number, because the mean of its divisors is an integer number (3999854887).
Almost surely, 231472454253 is an apocalyptic number.
It is an amenable number.
31472454253 is a deficient number, since it is larger than the sum of its proper divisors (526384843).
31472454253 is a wasteful number, since it uses less digits than its factorization.
31472454253 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 168495.
The product of its digits is 403200, while the sum is 40.
The spelling of 31472454253 in words is "thirty-one billion, four hundred seventy-two million, four hundred fifty-four thousand, two hundred fifty-three".
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