Base | Representation |
---|---|
bin | 111001010110… |
… | …1010110001000 |
3 | 2002120201111100 |
4 | 1302231112020 |
5 | 30144221102 |
6 | 2552301400 |
7 | 513410040 |
oct | 162552610 |
9 | 62521440 |
10 | 30070152 |
11 | 15a79172 |
12 | a0a1860 |
13 | 62cabb8 |
14 | 3dca720 |
15 | 298ea1c |
hex | 1cad588 |
30070152 has 48 divisors (see below), whose sum is σ = 93075840. Its totient is φ = 8591328.
The previous prime is 30070151. The next prime is 30070169. The reversal of 30070152 is 25107003.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is not an unprimeable number, because it can be changed into a prime (30070151) 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, 29328 + ... + 30335.
It is an arithmetic number, because the mean of its divisors is an integer number (1939080).
Almost surely, 230070152 is an apocalyptic number.
It is an amenable number.
30070152 is an abundant number, since it is smaller than the sum of its proper divisors (63005688).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30070152 is a wasteful number, since it uses less digits than its factorization.
30070152 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 59682 (or 59675 counting only the distinct ones).
The product of its (nonzero) digits is 210, while the sum is 18.
The square root of 30070152 is about 5483.6258078027. The cubic root of 30070152 is about 310.9652604711.
Adding to 30070152 its reverse (25107003), we get a palindrome (55177155).
The spelling of 30070152 in words is "thirty million, seventy thousand, one hundred fifty-two".
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