Base | Representation |
---|---|
bin | 11100011110001011… |
… | …101101001001001000 |
3 | 2220220120000122011112 |
4 | 130132023231021020 |
5 | 1000102203443130 |
6 | 22013313545452 |
7 | 2131403352545 |
oct | 343613551110 |
9 | 86816018145 |
10 | 30571156040 |
11 | 11a68691017 |
12 | 5b12275288 |
13 | 2b62801c59 |
14 | 16a0243bcc |
15 | bddd4a495 |
hex | 71e2ed248 |
30571156040 has 32 divisors (see below), whose sum is σ = 68804856000. Its totient is φ = 12224950464.
The previous prime is 30571156039. The next prime is 30571156043. The reversal of 30571156040 is 4065117503.
It is a junction number, because it is equal to n+sod(n) for n = 30571155988 and 30571156006.
It is not an unprimeable number, because it can be changed into a prime (30571156043) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33581 + ... + 249539.
It is an arithmetic number, because the mean of its divisors is an integer number (2150151750).
Almost surely, 230571156040 is an apocalyptic number.
It is an amenable number.
30571156040 is an abundant number, since it is smaller than the sum of its proper divisors (38233699960).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30571156040 is a wasteful number, since it uses less digits than its factorization.
30571156040 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 219509 (or 219505 counting only the distinct ones).
The product of its (nonzero) digits is 12600, while the sum is 32.
The spelling of 30571156040 in words is "thirty billion, five hundred seventy-one million, one hundred fifty-six thousand, forty".
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