Base | Representation |
---|---|
bin | 101100011110110101… |
… | …001101001101011000 |
3 | 11120021121110010201220 |
4 | 230132311031031120 |
5 | 1240304021420342 |
6 | 33535211212040 |
7 | 3310404326622 |
oct | 543665151530 |
9 | 146247403656 |
10 | 47761904472 |
11 | 1928a393827 |
12 | 930b447020 |
13 | 4672190649 |
14 | 24513b7c12 |
15 | 13981505ec |
hex | b1ed4d358 |
47761904472 has 128 divisors (see below), whose sum is σ = 122262255360. Its totient is φ = 15545088000.
The previous prime is 47761904461. The next prime is 47761904479. The reversal of 47761904472 is 27440916774.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (47761904479) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 137642203 + ... + 137642549.
It is an arithmetic number, because the mean of its divisors is an integer number (955173870).
Almost surely, 247761904472 is an apocalyptic number.
It is an amenable number.
47761904472 is an abundant number, since it is smaller than the sum of its proper divisors (74500350888).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
47761904472 is a wasteful number, since it uses less digits than its factorization.
47761904472 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 993 (or 989 counting only the distinct ones).
The product of its (nonzero) digits is 2370816, while the sum is 51.
The spelling of 47761904472 in words is "forty-seven billion, seven hundred sixty-one million, nine hundred four thousand, four hundred seventy-two".
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