Base | Representation |
---|---|
bin | 100100101011000… |
… | …0010110000100000 |
3 | 10011202102122120020 |
4 | 1021112002300200 |
5 | 10010002441412 |
6 | 322034113440 |
7 | 42331130652 |
oct | 11126026040 |
9 | 3152378506 |
10 | 1230515232 |
11 | 581659341 |
12 | 2a411b880 |
13 | 167c19b2b |
14 | b95d46d2 |
15 | 7306718c |
hex | 49582c20 |
1230515232 has 24 divisors (see below), whose sum is σ = 3230102736. Its totient is φ = 410171712.
The previous prime is 1230515213. The next prime is 1230515239. The reversal of 1230515232 is 2325150321.
It is a happy number.
It is a tau number, because it is divible by the number of its divisors (24).
It is a Harshad number since it is a multiple of its sum of digits (24).
It is not an unprimeable number, because it can be changed into a prime (1230515239) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6408838 + ... + 6409029.
It is an arithmetic number, because the mean of its divisors is an integer number (134587614).
Almost surely, 21230515232 is an apocalyptic number.
1230515232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.
It is an amenable number.
1230515232 is an abundant number, since it is smaller than the sum of its proper divisors (1999587504).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1230515232 is a wasteful number, since it uses less digits than its factorization.
1230515232 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 12817880 (or 12817872 counting only the distinct ones).
The product of its (nonzero) digits is 1800, while the sum is 24.
The square root of 1230515232 is about 35078.7005460579. The cubic root of 1230515232 is about 1071.5908533670.
Adding to 1230515232 its reverse (2325150321), we get a palindrome (3555665553).
The spelling of 1230515232 in words is "one billion, two hundred thirty million, five hundred fifteen thousand, two hundred thirty-two".
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