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245142283 = 259194613
BaseRepresentation
bin11101001110010…
…01001100001011
3122002021111222211
432213021030023
51000224023113
640154125551
76034450351
oct1647111413
9562244884
10245142283
11116416031
126a1208b7
133ba31609
14247b37d1
15167c4b3d
hexe9c930b

245142283 has 4 divisors (see below), whose sum is σ = 245239488. Its totient is φ = 245045080.

The previous prime is 245142281. The next prime is 245142299. The reversal of 245142283 is 382241542.

245142283 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 382241542 = 2191120771.

It is a cyclic number.

It is not a de Polignac number, because 245142283 - 21 = 245142281 is a prime.

It is a super-3 number, since 3×2451422833 (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (245142281) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44716 + ... + 49897.

It is an arithmetic number, because the mean of its divisors is an integer number (61309872).

Almost surely, 2245142283 is an apocalyptic number.

245142283 is a deficient number, since it is larger than the sum of its proper divisors (97205).

245142283 is an equidigital number, since it uses as much as digits as its factorization.

245142283 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97204.

The product of its digits is 15360, while the sum is 31.

The square root of 245142283 is about 15657.0202465220. The cubic root of 245142283 is about 625.8535818661.

The spelling of 245142283 in words is "two hundred forty-five million, one hundred forty-two thousand, two hundred eighty-three".

Divisors: 1 2591 94613 245142283