Base | Representation |
---|---|
bin | 101011111001001111… |
… | …001101011100111100 |
3 | 11111122122122101000200 |
4 | 223321033031130330 |
5 | 1233011040441004 |
6 | 33352440523500 |
7 | 3255645323316 |
oct | 537117153474 |
9 | 144578571020 |
10 | 47131187004 |
11 | 18a96365420 |
12 | 9174180590 |
13 | 45a15cb345 |
14 | 23d17167b6 |
15 | 135cab6239 |
hex | af93cd73c |
47131187004 has 36 divisors (see below), whose sum is σ = 129967819800. Its totient is φ = 14282177760.
The previous prime is 47131187003. The next prime is 47131187017. The reversal of 47131187004 is 40078113174.
47131187004 is a `hidden beast` number, since 471 + 3 + 1 + 187 + 0 + 0 + 4 = 666.
It is a tau number, because it is divible by the number of its divisors (36).
It is a Harshad number since it is a multiple of its sum of digits (36).
It is a self number, because there is not a number n which added to its sum of digits gives 47131187004.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (47131187003) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 59508679 + ... + 59509470.
Almost surely, 247131187004 is an apocalyptic number.
47131187004 is a gapful number since it is divisible by the number (44) formed by its first and last digit.
It is an amenable number.
47131187004 is an abundant number, since it is smaller than the sum of its proper divisors (82836632796).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
47131187004 is a wasteful number, since it uses less digits than its factorization.
47131187004 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 119018170 (or 119018165 counting only the distinct ones).
The product of its (nonzero) digits is 18816, while the sum is 36.
The spelling of 47131187004 in words is "forty-seven billion, one hundred thirty-one million, one hundred eighty-seven thousand, four".
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