Base | Representation |
---|---|
bin | 10001000010001… |
… | …10111101001100 |
3 | 100221212220210110 |
4 | 20201012331030 |
5 | 243040200342 |
6 | 22102440020 |
7 | 3353414151 |
oct | 1041067514 |
9 | 327786713 |
10 | 142896972 |
11 | 73730679 |
12 | 3ba33010 |
13 | 237b2b2a |
14 | 14d9a228 |
15 | c829c9c |
hex | 8846f4c |
142896972 has 24 divisors (see below), whose sum is σ = 341559792. Its totient is φ = 46470400.
The previous prime is 142896937. The next prime is 142896973. The reversal of 142896972 is 279698241.
It is not an unprimeable number, because it can be changed into a prime (142896973) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 144729 + ... + 145712.
It is an arithmetic number, because the mean of its divisors is an integer number (14231658).
Almost surely, 2142896972 is an apocalyptic number.
142896972 is a gapful number since it is divisible by the number (12) formed by its first and last digit.
It is an amenable number.
142896972 is an abundant number, since it is smaller than the sum of its proper divisors (198662820).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
142896972 is a wasteful number, since it uses less digits than its factorization.
142896972 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 290489 (or 290487 counting only the distinct ones).
The product of its digits is 435456, while the sum is 48.
The square root of 142896972 is about 11953.9521498122. The cubic root of 142896972 is about 522.8065363971.
The spelling of 142896972 in words is "one hundred forty-two million, eight hundred ninety-six thousand, nine hundred seventy-two".
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