| Base | Representation |
|---|---|
| bin | 100101101000010… |
| … | …101101110000000 |
| 3 | 1121222221222022000 |
| 4 | 211220111232000 |
| 5 | 2243110103322 |
| 6 | 142351344000 |
| 7 | 21434142144 |
| oct | 4550255600 |
| 9 | 1558858260 |
| 10 | 631331712 |
| 11 | 2a4408950 |
| 12 | 157522000 |
| 13 | a0a48a7b |
| 14 | 5dbc1224 |
| 15 | 3a65b3ac |
| hex | 25a15b80 |
631331712 has 128 divisors (see below), whose sum is σ = 2032819200. Its totient is φ = 191301120.
The previous prime is 631331689. The next prime is 631331717. The reversal of 631331712 is 217133136.
631331712 is a `hidden beast` number, since 631 + 3 + 3 + 17 + 12 = 666.
It is a tau number, because it is divible by the number of its divisors (128).
It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (631331717) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29713 + ... + 46319.
It is an arithmetic number, because the mean of its divisors is an integer number (15881400).
Almost surely, 2631331712 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 631331712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1016409600).
631331712 is an abundant number, since it is smaller than the sum of its proper divisors (1401487488).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
631331712 is a wasteful number, since it uses less digits than its factorization.
631331712 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 16641 (or 16623 counting only the distinct ones).
The product of its digits is 2268, while the sum is 27.
The square root of 631331712 is about 25126.3151297599. The cubic root of 631331712 is about 857.8654980126.
Adding to 631331712 its reverse (217133136), we get a palindrome (848464848).
It can be divided in two parts, 6313 and 31712, that added together give a square (38025 = 1952).
The spelling of 631331712 in words is "six hundred thirty-one million, three hundred thirty-one thousand, seven hundred twelve".
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