Base | Representation |
---|---|
bin | 11100111010011000… |
… | …000000000101011101 |
3 | 2222010112000210010000 |
4 | 130322120000011131 |
5 | 1002034300011110 |
6 | 22132251404513 |
7 | 2146205563614 |
oct | 347230000535 |
9 | 88115023100 |
10 | 31044141405 |
11 | 12190676a12 |
12 | 6024753739 |
13 | 2c097b8b54 |
14 | 1706da687b |
15 | c1a6291c0 |
hex | 73a60015d |
31044141405 has 40 divisors (see below), whose sum is σ = 58923010872. Its totient is φ = 15582938112.
The previous prime is 31044141391. The next prime is 31044141407. The reversal of 31044141405 is 50414144013.
31044141405 is a `hidden beast` number, since 3 + 104 + 414 + 140 + 5 = 666.
It can be written as a sum of positive squares in 4 ways, for example, as 1392334596 + 29651806809 = 37314^2 + 172197^2 .
It is not a de Polignac number, because 31044141405 - 24 = 31044141389 is a prime.
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 (31044141407) by changing a digit.
It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2247592 + ... + 2261361.
Almost surely, 231044141405 is an apocalyptic number.
It is an amenable number.
31044141405 is a deficient number, since it is larger than the sum of its proper divisors (27878869467).
31044141405 is a wasteful number, since it uses less digits than its factorization.
31044141405 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4508987 (or 4508978 counting only the distinct ones).
The product of its (nonzero) digits is 3840, while the sum is 27.
Adding to 31044141405 its reverse (50414144013), we get a palindrome (81458285418).
The spelling of 31044141405 in words is "thirty-one billion, forty-four million, one hundred forty-one thousand, four hundred five".
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