Base | Representation |
---|---|
bin | 111101001011110… |
… | …1001111000011111 |
3 | 12022002010021122210 |
4 | 1322113221320133 |
5 | 13201033134330 |
6 | 535415211503 |
7 | 101606251410 |
oct | 17227517037 |
9 | 5262107583 |
10 | 2053021215 |
11 | 963971253 |
12 | 493676b93 |
13 | 26944c96b |
14 | 15693b807 |
15 | c03878b0 |
hex | 7a5e9e1f |
2053021215 has 32 divisors (see below), whose sum is σ = 3883553280. Its totient is φ = 906159744.
The previous prime is 2053021163. The next prime is 2053021219. The reversal of 2053021215 is 5121203502.
It is not a de Polignac number, because 2053021215 - 29 = 2053020703 is a prime.
It is a super-2 number, since 2×20530212152 = 8429792218480152450, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (21).
It is a junction number, because it is equal to n+sod(n) for n = 2053021191 and 2053021200.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2053021219) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 334069 + ... + 340158.
It is an arithmetic number, because the mean of its divisors is an integer number (121361040).
Almost surely, 22053021215 is an apocalyptic number.
2053021215 is a deficient number, since it is larger than the sum of its proper divisors (1830532065).
2053021215 is a wasteful number, since it uses less digits than its factorization.
2053021215 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 674271.
The product of its (nonzero) digits is 600, while the sum is 21.
The square root of 2053021215 is about 45310.2771454777. The cubic root of 2053021215 is about 1270.9578437557.
Adding to 2053021215 its reverse (5121203502), we get a palindrome (7174224717).
The spelling of 2053021215 in words is "two billion, fifty-three million, twenty-one thousand, two hundred fifteen".
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