| Base | Representation |
|---|---|
| bin | 111011100111… |
| … | …0001111100000 |
| 3 | 2011210211201000 |
| 4 | 1313032033200 |
| 5 | 31000102342 |
| 6 | 3033512000 |
| 7 | 526435665 |
| oct | 167161740 |
| 9 | 64724630 |
| 10 | 31253472 |
| 11 | 16707218 |
| 12 | a572600 |
| 13 | 66236a3 |
| 14 | 4217a6c |
| 15 | 2b2544c |
| hex | 1dce3e0 |
31253472 has 96 divisors (see below), whose sum is σ = 92806560. Its totient is φ = 10229760.
The previous prime is 31253471. The next prime is 31253473. The reversal of 31253472 is 27435213.
31253472 is a `hidden beast` number, since 312 + 5 + 347 + 2 = 666.
It is an interprime number because it is at equal distance from previous prime (31253471) and next prime (31253473).
It is a tau number, because it is divible by the number of its divisors (96).
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 (31253471) 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, 52408 + ... + 53000.
It is an arithmetic number, because the mean of its divisors is an integer number (966735).
Almost surely, 231253472 is an apocalyptic number.
31253472 is a gapful number since it is divisible by the number (32) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 31253472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46403280).
31253472 is an abundant number, since it is smaller than the sum of its proper divisors (61553088).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
31253472 is a wasteful number, since it uses less digits than its factorization.
31253472 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 673 (or 659 counting only the distinct ones).
The product of its digits is 5040, while the sum is 27.
The square root of 31253472 is about 5590.4804802450. The cubic root of 31253472 is about 314.9919272308.
Adding to 31253472 its reverse (27435213), we get a palindrome (58688685).
The spelling of 31253472 in words is "thirty-one million, two hundred fifty-three thousand, four hundred seventy-two".
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