Base | Representation |
---|---|
bin | 10010101010110101… |
… | …100100101101010000 |
3 | 1220202001011100002210 |
4 | 102222311210231100 |
5 | 312023241234023 |
6 | 13113052112120 |
7 | 1306521345660 |
oct | 225265445520 |
9 | 56661140083 |
10 | 20046039888 |
11 | 8557515516 |
12 | 3a75465640 |
13 | 1b760a7684 |
14 | d8246c1a0 |
15 | 7c4d12593 |
hex | 4aad64b50 |
20046039888 has 80 divisors (see below), whose sum is σ = 61092724736. Its totient is φ = 5542680960.
The previous prime is 20046039887. The next prime is 20046039911. The reversal of 20046039888 is 88893064002.
It is a happy number.
It is a Harshad number since it is a multiple of its sum of digits (48).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20046039887) 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, 951856 + ... + 972687.
Almost surely, 220046039888 is an apocalyptic number.
20046039888 is a gapful number since it is divisible by the number (28) formed by its first and last digit.
It is an amenable number.
20046039888 is an abundant number, since it is smaller than the sum of its proper divisors (41046684848).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20046039888 is a wasteful number, since it uses less digits than its factorization.
20046039888 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1924592 (or 1924586 counting only the distinct ones).
The product of its (nonzero) digits is 663552, while the sum is 48.
The spelling of 20046039888 in words is "twenty billion, forty-six million, thirty-nine thousand, eight hundred eighty-eight".
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