Base | Representation |
---|---|
bin | 11100011100011110… |
… | …100111101110001001 |
3 | 2220211120012210222000 |
4 | 130130132213232021 |
5 | 1000022343411022 |
6 | 22010413021213 |
7 | 2130605322555 |
oct | 343436475611 |
9 | 86746183860 |
10 | 30542560137 |
11 | 11a5352a541 |
12 | 5b04784809 |
13 | 2b598cc0bb |
14 | 169a51c865 |
15 | bdb59c6ac |
hex | 71c7a7b89 |
30542560137 has 24 divisors (see below), whose sum is σ = 45762677280. Its totient is φ = 20132782560.
The previous prime is 30542560129. The next prime is 30542560183. The reversal of 30542560137 is 73106524503.
30542560137 is a `hidden beast` number, since 3 + 0 + 5 + 42 + 5 + 601 + 3 + 7 = 666.
It is not a de Polignac number, because 30542560137 - 23 = 30542560129 is a prime.
It is a super-2 number, since 2×305425601372 (a number of 22 digits) contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (30542560337) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 142462 + ... + 285272.
It is an arithmetic number, because the mean of its divisors is an integer number (1906778220).
Almost surely, 230542560137 is an apocalyptic number.
It is an amenable number.
30542560137 is a deficient number, since it is larger than the sum of its proper divisors (15220117143).
30542560137 is an equidigital number, since it uses as much as digits as its factorization.
30542560137 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 142998 (or 142903 counting only the distinct ones).
The product of its (nonzero) digits is 75600, while the sum is 36.
The spelling of 30542560137 in words is "thirty billion, five hundred forty-two million, five hundred sixty thousand, one hundred thirty-seven".
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