Base | Representation |
---|---|
bin | 101011111100110011… |
… | …010011101000001011 |
3 | 11111210211011020010222 |
4 | 223330303103220023 |
5 | 1233121342344011 |
6 | 33402414300255 |
7 | 3260302502240 |
oct | 537463235013 |
9 | 144724136128 |
10 | 47190981131 |
11 | 19017095658 |
12 | 91901b768b |
13 | 45b0b05698 |
14 | 23d963d5c7 |
15 | 1362e77ddb |
hex | afccd3a0b |
47190981131 has 16 divisors (see below), whose sum is σ = 56777429760. Its totient is φ = 38316227040.
The previous prime is 47190981113. The next prime is 47190981133. The reversal of 47190981131 is 13118909174.
It is not a de Polignac number, because 47190981131 - 214 = 47190964747 is a prime.
It is a super-2 number, since 2×471909811312 (a number of 22 digits) contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (47190981133) 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, 1820000 + ... + 1845746.
It is an arithmetic number, because the mean of its divisors is an integer number (3548589360).
Almost surely, 247190981131 is an apocalyptic number.
47190981131 is a deficient number, since it is larger than the sum of its proper divisors (9586448629).
47190981131 is a wasteful number, since it uses less digits than its factorization.
47190981131 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 39554.
The product of its (nonzero) digits is 54432, while the sum is 44.
The spelling of 47190981131 in words is "forty-seven billion, one hundred ninety million, nine hundred eighty-one thousand, one hundred thirty-one".
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