Base | Representation |
---|---|
bin | 101011111001111100… |
… | …001101111010110000 |
3 | 11111200110211210101000 |
4 | 223321330031322300 |
5 | 1233022101013032 |
6 | 33353541442000 |
7 | 3256150523046 |
oct | 537174157260 |
9 | 144613753330 |
10 | 47142985392 |
11 | 18aa1a93758 |
12 | 9178110300 |
13 | 45a3b9c639 |
14 | 23d3108396 |
15 | 135db46e7c |
hex | af9f0deb0 |
47142985392 has 80 divisors (see below), whose sum is σ = 138618315360. Its totient is φ = 15331046400.
The previous prime is 47142985369. The next prime is 47142985397. The reversal of 47142985392 is 29358924174.
47142985392 is a `hidden beast` number, since 4 + 7 + 14 + 2 + 98 + 539 + 2 = 666.
It is a super-2 number, since 2×471429853922 (a number of 22 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (54).
It is not an unprimeable number, because it can be changed into a prime (47142985397) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1313109 + ... + 1348532.
It is an arithmetic number, because the mean of its divisors is an integer number (1732728942).
Almost surely, 247142985392 is an apocalyptic number.
It is an amenable number.
47142985392 is an abundant number, since it is smaller than the sum of its proper divisors (91475329968).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
47142985392 is a wasteful number, since it uses less digits than its factorization.
47142985392 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2661699 (or 2661687 counting only the distinct ones).
The product of its digits is 4354560, while the sum is 54.
The spelling of 47142985392 in words is "forty-seven billion, one hundred forty-two million, nine hundred eighty-five thousand, three hundred ninety-two".
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