Base | Representation |
---|---|
bin | 10010111010110100… |
… | …101001000000000000 |
3 | 1221102201210211211221 |
4 | 102322310221000000 |
5 | 313100420341114 |
6 | 13155432244424 |
7 | 1316256053431 |
oct | 227264510000 |
9 | 57381724757 |
10 | 20314230784 |
11 | 8684943291 |
12 | 3b2b240714 |
13 | 1bb9818c03 |
14 | da9d21488 |
15 | 7dd63b524 |
hex | 4bad29000 |
20314230784 has 117 divisors (see below), whose sum is σ = 43485617641. Its totient is φ = 9486663680.
The previous prime is 20314230751. The next prime is 20314230791. The reversal of 20314230784 is 48703241302.
The square root of 20314230784 is 142528.
It is a perfect power (a square), and thus also a powerful number.
It can be written as a sum of positive squares in only one way, i.e., 15815577600 + 4498653184 = 125760^2 + 67072^2 .
It is a super-2 number, since 2×203142307842 (a number of 21 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (34).
It is a Duffinian number.
It is an unprimeable number.
It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 155070399 + ... + 155070529.
Almost surely, 220314230784 is an apocalyptic number.
20314230784 is the 142528-th square number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 20314230784
20314230784 is an abundant number, since it is smaller than the sum of its proper divisors (23171386857).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20314230784 is an frugal number, since it uses more digits than its factorization.
20314230784 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 320 (or 150 counting only the distinct ones).
The product of its (nonzero) digits is 32256, while the sum is 34.
The spelling of 20314230784 in words is "twenty billion, three hundred fourteen million, two hundred thirty thousand, seven hundred eighty-four".
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