Base | Representation |
---|---|
bin | 11100111010011000… |
… | …001001011100000000 |
3 | 2222010112002201122210 |
4 | 130322120021130000 |
5 | 1002034302222322 |
6 | 22132252302120 |
7 | 2146206113400 |
oct | 347230113400 |
9 | 88115081583 |
10 | 31044179712 |
11 | 121906a2777 |
12 | 6024771940 |
13 | 2c09800410 |
14 | 1706db6800 |
15 | c1a63570c |
hex | 73a609700 |
31044179712 has 864 divisors, whose sum is σ = 112742461440. Its totient is φ = 7493713920.
The previous prime is 31044179693. The next prime is 31044179713. The reversal of 31044179712 is 21797144013.
It is a Harshad number since it is a multiple of its sum of digits (39).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (31044179713) by changing a digit.
It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 348810964 + ... + 348811052.
It is an arithmetic number, because the mean of its divisors is an integer number (130488960).
Almost surely, 231044179712 is an apocalyptic number.
31044179712 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 31044179712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56371230720).
31044179712 is an abundant number, since it is smaller than the sum of its proper divisors (81698281728).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
31044179712 is a wasteful number, since it uses less digits than its factorization.
31044179712 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 189 (or 168 counting only the distinct ones).
The product of its (nonzero) digits is 42336, while the sum is 39.
The spelling of 31044179712 in words is "thirty-one billion, forty-four million, one hundred seventy-nine thousand, seven hundred twelve".
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