Base | Representation |
---|---|
bin | 111011111111… |
… | …1010010001110 |
3 | 2012012001020221 |
4 | 1313333102032 |
5 | 31023014400 |
6 | 3042101554 |
7 | 531233434 |
oct | 167772216 |
9 | 65161227 |
10 | 31454350 |
11 | 16834134 |
12 | a64a8ba |
13 | 6693c55 |
14 | 426ad54 |
15 | 2b64c1a |
hex | 1dff48e |
31454350 has 24 divisors (see below), whose sum is σ = 58679280. Its totient is φ = 12544320.
The previous prime is 31454321. The next prime is 31454351. The reversal of 31454350 is 5345413.
It is a super-2 number, since 2×314543502 = 1978752267845000, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (25).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (31454351) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21234 + ... + 22666.
It is an arithmetic number, because the mean of its divisors is an integer number (2444970).
Almost surely, 231454350 is an apocalyptic number.
31454350 is a deficient number, since it is larger than the sum of its proper divisors (27224930).
31454350 is a wasteful number, since it uses less digits than its factorization.
31454350 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1884 (or 1879 counting only the distinct ones).
The product of its (nonzero) digits is 3600, while the sum is 25.
The square root of 31454350 is about 5608.4177804440. The cubic root of 31454350 is about 315.6653443184.
Adding to 31454350 its reverse (5345413), we get a palindrome (36799763).
The spelling of 31454350 in words is "thirty-one million, four hundred fifty-four thousand, three hundred fifty".
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