Base | Representation |
---|---|
bin | 111011111010… |
… | …1011111100101 |
3 | 2012010000020120 |
4 | 1313311133211 |
5 | 31020223440 |
6 | 3041152153 |
7 | 531005502 |
oct | 167653745 |
9 | 65100216 |
10 | 31414245 |
11 | 16806a95 |
12 | a62b659 |
13 | 667b915 |
14 | 425a4a9 |
15 | 2b57dd0 |
hex | 1df57e5 |
31414245 has 16 divisors (see below), whose sum is σ = 50430912. Its totient is φ = 16698240.
The previous prime is 31414231. The next prime is 31414267. The reversal of 31414245 is 54241413.
It is not a de Polignac number, because 31414245 - 211 = 31412197 is a prime.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1350 + ... + 8040.
It is an arithmetic number, because the mean of its divisors is an integer number (3151932).
Almost surely, 231414245 is an apocalyptic number.
It is an amenable number.
31414245 is a deficient number, since it is larger than the sum of its proper divisors (19016667).
31414245 is a wasteful number, since it uses less digits than its factorization.
31414245 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7012.
The product of its digits is 1920, while the sum is 24.
The square root of 31414245 is about 5604.8412109533. The cubic root of 31414245 is about 315.5311271334.
Adding to 31414245 its reverse (54241413), we get a palindrome (85655658).
The spelling of 31414245 in words is "thirty-one million, four hundred fourteen thousand, two hundred forty-five".
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