Base | Representation |
---|---|
bin | 11110001011011… |
… | …00100000001001 |
3 | 122122100102012220 |
4 | 33011230200021 |
5 | 1004301314431 |
6 | 41041524253 |
7 | 6162515160 |
oct | 1705544011 |
9 | 578312186 |
10 | 253151241 |
11 | 11a996302 |
12 | 70943689 |
13 | 405a6b45 |
14 | 2589a3d7 |
15 | 17357b96 |
hex | f16c809 |
253151241 has 16 divisors (see below), whose sum is σ = 392294400. Its totient is φ = 142205328.
The previous prime is 253151221. The next prime is 253151243. The reversal of 253151241 is 142151352.
It is a happy number.
It is not a de Polignac number, because 253151241 - 27 = 253151113 is a prime.
It is not an unprimeable number, because it can be changed into a prime (253151243) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100921 + ... + 103398.
It is an arithmetic number, because the mean of its divisors is an integer number (24518400).
Almost surely, 2253151241 is an apocalyptic number.
253151241 is a gapful number since it is divisible by the number (21) formed by its first and last digit.
It is an amenable number.
253151241 is a deficient number, since it is larger than the sum of its proper divisors (139143159).
253151241 is a wasteful number, since it uses less digits than its factorization.
253151241 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 204388.
The product of its digits is 1200, while the sum is 24.
The square root of 253151241 is about 15910.7272303940. The cubic root of 253151241 is about 632.5963574966.
The spelling of 253151241 in words is "two hundred fifty-three million, one hundred fifty-one thousand, two hundred forty-one".
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