Base | Representation |
---|---|
bin | 11100111010011001… |
… | …011111000011111110 |
3 | 2222010112202112202100 |
4 | 130322121133003332 |
5 | 1002034344433210 |
6 | 22132304005530 |
7 | 2146212104034 |
oct | 347231370376 |
9 | 88115675670 |
10 | 31044530430 |
11 | 12190912221 |
12 | 60249008a6 |
13 | 2c098c3c44 |
14 | 1707068554 |
15 | c1a6a45c0 |
hex | 73a65f0fe |
31044530430 has 48 divisors (see below), whose sum is σ = 80727650640. Its totient is φ = 8277323904.
The previous prime is 31044530423. The next prime is 31044530437. The reversal of 31044530430 is 3403544013.
31044530430 is a `hidden beast` number, since 310 + 4 + 45 + 304 + 3 + 0 = 666.
It is an interprime number because it is at equal distance from previous prime (31044530423) and next prime (31044530437).
It is a junction number, because it is equal to n+sod(n) for n = 31044530394 and 31044530403.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (31044530437) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 706689 + ... + 749331.
It is an arithmetic number, because the mean of its divisors is an integer number (1681826055).
Almost surely, 231044530430 is an apocalyptic number.
31044530430 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
31044530430 is an abundant number, since it is smaller than the sum of its proper divisors (49683120210).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
31044530430 is a wasteful number, since it uses less digits than its factorization.
31044530430 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 50745 (or 50742 counting only the distinct ones).
The product of its (nonzero) digits is 8640, while the sum is 27.
The spelling of 31044530430 in words is "thirty-one billion, forty-four million, five hundred thirty thousand, four hundred thirty".
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