Base | Representation |
---|---|
bin | 11100011011111010… |
… | …010111000001001100 |
3 | 2220210220022212201212 |
4 | 130123322113001030 |
5 | 1000012430221130 |
6 | 22005433153552 |
7 | 2130431452502 |
oct | 343372270114 |
9 | 86726285655 |
10 | 30533054540 |
11 | 11a4912787a |
12 | 5b0155b8b8 |
13 | 2b579515a1 |
14 | 1699166672 |
15 | bda820e95 |
hex | 71be9704c |
30533054540 has 24 divisors (see below), whose sum is σ = 64177278480. Its totient is φ = 12202200128.
The previous prime is 30533054537. The next prime is 30533054543. The reversal of 30533054540 is 4545033503.
It is an interprime number because it is at equal distance from previous prime (30533054537) and next prime (30533054543).
It is a super-2 number, since 2×305330545402 (a number of 22 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 30533054497 and 30533054506.
It is not an unprimeable number, because it can be changed into a prime (30533054543) 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, 666122 + ... + 710481.
It is an arithmetic number, because the mean of its divisors is an integer number (2674053270).
Almost surely, 230533054540 is an apocalyptic number.
It is an amenable number.
30533054540 is an abundant number, since it is smaller than the sum of its proper divisors (33644223940).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30533054540 is a wasteful number, since it uses less digits than its factorization.
30533054540 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1377721 (or 1377719 counting only the distinct ones).
The product of its (nonzero) digits is 54000, while the sum is 32.
The spelling of 30533054540 in words is "thirty billion, five hundred thirty-three million, fifty-four thousand, five hundred forty".
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