Base | Representation |
---|---|
bin | 11110001011010… |
… | …10010011000000 |
3 | 122122022221211100 |
4 | 33011222103000 |
5 | 1004301022313 |
6 | 41041414400 |
7 | 6162446634 |
oct | 1705522300 |
9 | 578287740 |
10 | 253142208 |
11 | 11a98a540 |
12 | 7093a400 |
13 | 405a29b7 |
14 | 25896dc4 |
15 | 17355173 |
hex | f16a4c0 |
253142208 has 84 divisors (see below), whose sum is σ = 791568648. Its totient is φ = 76707840.
The previous prime is 253142203. The next prime is 253142221. The reversal of 253142208 is 802241352.
It is a super-2 number, since 2×2531422082 = 128161954942230528, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (253142203) 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, 13641 + ... + 26312.
Almost surely, 2253142208 is an apocalyptic number.
It is an amenable number.
253142208 is an abundant number, since it is smaller than the sum of its proper divisors (538426440).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
253142208 is a wasteful number, since it uses less digits than its factorization.
253142208 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 39982 (or 39969 counting only the distinct ones).
The product of its (nonzero) digits is 3840, while the sum is 27.
The square root of 253142208 is about 15910.4433627728. The cubic root of 253142208 is about 632.5888332582.
The spelling of 253142208 in words is "two hundred fifty-three million, one hundred forty-two thousand, two hundred eight".
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