Base | Representation |
---|---|
bin | 11101001100101000… |
… | …100011011100100101 |
3 | 2222220212102220112201 |
4 | 131030220203130211 |
5 | 1003201210023222 |
6 | 22222513214501 |
7 | 2156615413306 |
oct | 351450433445 |
9 | 88825386481 |
10 | 31350470437 |
11 | 12328583500 |
12 | 60ab261431 |
13 | 2c580c1630 |
14 | 17359467ad |
15 | c37488427 |
hex | 74ca23725 |
31350470437 has 24 divisors (see below), whose sum is σ = 37185063552. Its totient is φ = 26255122080.
The previous prime is 31350470429. The next prime is 31350470471. The reversal of 31350470437 is 73407405313.
It is not a de Polignac number, because 31350470437 - 23 = 31350470429 is a prime.
It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.
It is a junction number, because it is equal to n+sod(n) for n = 31350470396 and 31350470405.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (31350470477) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 771408 + ... + 811030.
It is an arithmetic number, because the mean of its divisors is an integer number (1549377648).
Almost surely, 231350470437 is an apocalyptic number.
It is an amenable number.
31350470437 is a deficient number, since it is larger than the sum of its proper divisors (5834593115).
31350470437 is a wasteful number, since it uses less digits than its factorization.
31350470437 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 40161 (or 40150 counting only the distinct ones).
The product of its (nonzero) digits is 105840, while the sum is 37.
The spelling of 31350470437 in words is "thirty-one billion, three hundred fifty million, four hundred seventy thousand, four hundred thirty-seven".
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