Base | Representation |
---|---|
bin | 10011000000000000… |
… | …001110011111011101 |
3 | 1221122210101000002210 |
4 | 103000000032133131 |
5 | 313240143412023 |
6 | 13212215311033 |
7 | 1321362643062 |
oct | 230000163735 |
9 | 57583330083 |
10 | 20401154013 |
11 | 8719a12a69 |
12 | 3b5437b479 |
13 | 1c01831586 |
14 | db76aac69 |
15 | 7e60ab593 |
hex | 4c000e7dd |
20401154013 has 8 divisors (see below), whose sum is σ = 27282256768. Its totient is φ = 13560410304.
The previous prime is 20401153979. The next prime is 20401154023. The reversal of 20401154013 is 31045110402.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 20401154013 - 224 = 20384376797 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20401154023) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10088581 + ... + 10090602.
It is an arithmetic number, because the mean of its divisors is an integer number (3410282096).
Almost surely, 220401154013 is an apocalyptic number.
It is an amenable number.
20401154013 is a deficient number, since it is larger than the sum of its proper divisors (6881102755).
20401154013 is a wasteful number, since it uses less digits than its factorization.
20401154013 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 20179523.
The product of its (nonzero) digits is 480, while the sum is 21.
Adding to 20401154013 its reverse (31045110402), we get a palindrome (51446264415).
The spelling of 20401154013 in words is "twenty billion, four hundred one million, one hundred fifty-four thousand, thirteen".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.068 sec. • engine limits •