Base | Representation |
---|---|
bin | 10010101000010… |
… | …000010101010000 |
3 | 210210002210202210 |
4 | 102220100111100 |
5 | 1120002330134 |
6 | 51002512120 |
7 | 10513365516 |
oct | 2250202520 |
9 | 723083683 |
10 | 312542544 |
11 | 150470926 |
12 | 88805640 |
13 | 4c99ca22 |
14 | 2d71a4b6 |
15 | 1c68a2e9 |
hex | 12a10550 |
312542544 has 20 divisors (see below), whose sum is σ = 807401696. Its totient is φ = 104180832.
The previous prime is 312542543. The next prime is 312542563. The reversal of 312542544 is 445245213.
It is a super-3 number, since 3×3125425443 (a number of 26 digits) contains 333 as substring.
It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (312542543) 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, 3255604 + ... + 3255699.
Almost surely, 2312542544 is an apocalyptic number.
It is an amenable number.
312542544 is an abundant number, since it is smaller than the sum of its proper divisors (494859152).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
312542544 is a wasteful number, since it uses less digits than its factorization.
312542544 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6511314 (or 6511308 counting only the distinct ones).
The product of its digits is 19200, while the sum is 30.
The square root of 312542544 is about 17678.8728147470. The cubic root of 312542544 is about 678.6351980002.
Adding to 312542544 its reverse (445245213), we get a palindrome (757787757).
The spelling of 312542544 in words is "three hundred twelve million, five hundred forty-two thousand, five hundred forty-four".
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