Base | Representation |
---|---|
bin | 11101111011110… |
… | …11001010010010 |
3 | 122111111220211100 |
4 | 32331323022102 |
5 | 1003241123010 |
6 | 40530125230 |
7 | 6136302111 |
oct | 1675731222 |
9 | 574456740 |
10 | 251114130 |
11 | 119824843 |
12 | 70120816 |
13 | 40042857 |
14 | 254c9c78 |
15 | 170a42c0 |
hex | ef7b292 |
251114130 has 24 divisors (see below), whose sum is σ = 652896972. Its totient is φ = 66963744.
The previous prime is 251114117. The next prime is 251114131. The reversal of 251114130 is 31411152.
251114130 is a `hidden beast` number, since 251 + 1 + 1 + 413 + 0 = 666.
It can be written as a sum of positive squares in 2 ways, for example, as 236575161 + 14538969 = 15381^2 + 3813^2 .
It is a Harshad number since it is a multiple of its sum of digits (18).
It is not an unprimeable number, because it can be changed into a prime (251114131) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1394989 + ... + 1395168.
Almost surely, 2251114130 is an apocalyptic number.
251114130 is an abundant number, since it is smaller than the sum of its proper divisors (401782842).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
251114130 is a wasteful number, since it uses less digits than its factorization.
251114130 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2790170 (or 2790167 counting only the distinct ones).
The product of its (nonzero) digits is 120, while the sum is 18.
The square root of 251114130 is about 15846.5810192609. The cubic root of 251114130 is about 630.8949487858.
Adding to 251114130 its reverse (31411152), we get a palindrome (282525282).
It can be divided in two parts, 25111 and 4130, that added together give a square (29241 = 1712).
The spelling of 251114130 in words is "two hundred fifty-one million, one hundred fourteen thousand, one hundred thirty".
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