Base | Representation |
---|---|
bin | 11101001110010… |
… | …01001001110100 |
3 | 122002021111210020 |
4 | 32213021021310 |
5 | 1000224022012 |
6 | 40154125140 |
7 | 6034450044 |
oct | 1647111164 |
9 | 562244706 |
10 | 245142132 |
11 | 116415a04 |
12 | 6a1207b0 |
13 | 3ba31521 |
14 | 247b3724 |
15 | 167c4a8c |
hex | e9c9274 |
245142132 has 12 divisors (see below), whose sum is σ = 571998336. Its totient is φ = 81714040.
The previous prime is 245142113. The next prime is 245142169. The reversal of 245142132 is 231241542.
245142132 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.
It is a tau number, because it is divible by the number of its divisors (12).
It is a super-3 number, since 3×2451421323 (a number of 26 digits) contains 333 as substring.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10214244 + ... + 10214267.
It is an arithmetic number, because the mean of its divisors is an integer number (47666528).
Almost surely, 2245142132 is an apocalyptic number.
It is an amenable number.
245142132 is an abundant number, since it is smaller than the sum of its proper divisors (326856204).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
245142132 is a wasteful number, since it uses less digits than its factorization.
245142132 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 20428518 (or 20428516 counting only the distinct ones).
The product of its digits is 1920, while the sum is 24.
The square root of 245142132 is about 15657.0154244032. The cubic root of 245142132 is about 625.8534533640.
Adding to 245142132 its reverse (231241542), we get a palindrome (476383674).
The spelling of 245142132 in words is "two hundred forty-five million, one hundred forty-two thousand, one hundred thirty-two".
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