Base | Representation |
---|---|
bin | 11101011000001011… |
… | …111101100111011101 |
3 | 10000102101011120112011 |
4 | 131120023331213131 |
5 | 1004100320131140 |
6 | 22254035511221 |
7 | 2164461100114 |
oct | 353013754735 |
9 | 100371146464 |
10 | 31544302045 |
11 | 12417a33013 |
12 | 6144158511 |
13 | 2c892c90a9 |
14 | 17535a0c7b |
15 | c494c4cea |
hex | 7582fd9dd |
31544302045 has 8 divisors (see below), whose sum is σ = 37856688480. Its totient is φ = 25233090960.
The previous prime is 31544302021. The next prime is 31544302051. The reversal of 31544302045 is 54020344513.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 31544302045 - 219 = 31543777757 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 31544301998 and 31544302016.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 233671 + ... + 343060.
It is an arithmetic number, because the mean of its divisors is an integer number (4732086060).
Almost surely, 231544302045 is an apocalyptic number.
It is an amenable number.
31544302045 is a deficient number, since it is larger than the sum of its proper divisors (6312386435).
31544302045 is a wasteful number, since it uses less digits than its factorization.
31544302045 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 587675.
The product of its (nonzero) digits is 28800, while the sum is 31.
Adding to 31544302045 its reverse (54020344513), we get a palindrome (85564646558).
The spelling of 31544302045 in words is "thirty-one billion, five hundred forty-four million, three hundred two thousand, forty-five".
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