Base | Representation |
---|---|
bin | 11100000101000000… |
… | …001011000011111010 |
3 | 2212211010002202210120 |
4 | 130011000023003322 |
5 | 443221031434313 |
6 | 21503343154110 |
7 | 2115053512500 |
oct | 340500130372 |
9 | 85733082716 |
10 | 30148702458 |
11 | 1187117a426 |
12 | 5a148a5936 |
13 | 2ac612b514 |
14 | 16600b6670 |
15 | bb6bedd23 |
hex | 70500b0fa |
30148702458 has 24 divisors (see below), whose sum is σ = 70141879872. Its totient is φ = 8613914904.
The previous prime is 30148702453. The next prime is 30148702511. The reversal of 30148702458 is 85420784103.
It is a Harshad number since it is a multiple of its sum of digits (42).
It is not an unprimeable number, because it can be changed into a prime (30148702453) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 51273010 + ... + 51273597.
It is an arithmetic number, because the mean of its divisors is an integer number (2922578328).
Almost surely, 230148702458 is an apocalyptic number.
30148702458 is an abundant number, since it is smaller than the sum of its proper divisors (39993177414).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30148702458 is a wasteful number, since it uses less digits than its factorization.
30148702458 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 102546626 (or 102546619 counting only the distinct ones).
The product of its (nonzero) digits is 215040, while the sum is 42.
The spelling of 30148702458 in words is "thirty billion, one hundred forty-eight million, seven hundred two thousand, four hundred fifty-eight".
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