Base | Representation |
---|---|
bin | 101100001011101010… |
… | …111011110100001000 |
3 | 11112110012120021210200 |
4 | 230023222323310020 |
5 | 1234124223212210 |
6 | 33443245212200 |
7 | 3266422061226 |
oct | 541352736410 |
9 | 145405507720 |
10 | 47440444680 |
11 | 19134992282 |
12 | 923b861060 |
13 | 46206bab55 |
14 | 2420819b16 |
15 | 1379d030c0 |
hex | b0babbd08 |
47440444680 has 96 divisors (see below), whose sum is σ = 154964323800. Its totient is φ = 12586549248.
The previous prime is 47440444679. The next prime is 47440444729. The reversal of 47440444680 is 8644404474.
47440444680 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It can be written as a sum of positive squares in 4 ways, for example, as 43479756324 + 3960688356 = 208518^2 + 62934^2 .
It is a super-2 number, since 2×474404446802 (a number of 22 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (45).
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 263545 + ... + 405384.
Almost surely, 247440444680 is an apocalyptic number.
47440444680 is a gapful number since it is divisible by the number (40) formed by its first and last digit.
It is an amenable number.
47440444680 is an abundant number, since it is smaller than the sum of its proper divisors (107523879120).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
47440444680 is a wasteful number, since it uses less digits than its factorization.
47440444680 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 669143 (or 669136 counting only the distinct ones).
The product of its (nonzero) digits is 1376256, while the sum is 45.
The spelling of 47440444680 in words is "forty-seven billion, four hundred forty million, four hundred forty-four thousand, six hundred eighty".
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