Base | Representation |
---|---|
bin | 10010111111001010… |
… | …011011101000000101 |
3 | 1221121210211112211101 |
4 | 102333022123220011 |
5 | 313223041131122 |
6 | 13210553140101 |
7 | 1321132040332 |
oct | 227712335005 |
9 | 57553745741 |
10 | 20387052037 |
11 | 8711a60a40 |
12 | 3b4b6ba631 |
13 | 1bcb934901 |
14 | db5879989 |
15 | 7e4c23027 |
hex | 4bf29ba05 |
20387052037 has 8 divisors (see below), whose sum is σ = 22294802880. Its totient is φ = 18488364960.
The previous prime is 20387052031. The next prime is 20387052043. The reversal of 20387052037 is 73025078302.
It is an interprime number because it is at equal distance from previous prime (20387052031) and next prime (20387052043).
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 20387052037 - 215 = 20387019269 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 20387051987 and 20387052005.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20387052031) 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, 2261233 + ... + 2270230.
It is an arithmetic number, because the mean of its divisors is an integer number (2786850360).
Almost surely, 220387052037 is an apocalyptic number.
It is an amenable number.
20387052037 is a deficient number, since it is larger than the sum of its proper divisors (1907750843).
20387052037 is a wasteful number, since it uses less digits than its factorization.
20387052037 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4531883.
The product of its (nonzero) digits is 70560, while the sum is 37.
The spelling of 20387052037 in words is "twenty billion, three hundred eighty-seven million, fifty-two thousand, thirty-seven".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.071 sec. • engine limits •