Search a number
-
+
250242541 = 594241399
BaseRepresentation
bin11101110101001…
…10010111101101
3122102212122020021
432322212113231
51003030230131
640455322141
76126012043
oct1672462755
9572778207
10250242541
11119289a1a
126b980351
133cac8c13
1425340393
1516e80e11
hexeea65ed

250242541 has 4 divisors (see below), whose sum is σ = 254484000. Its totient is φ = 246001084.

The previous prime is 250242529. The next prime is 250242547. The reversal of 250242541 is 145242052.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 250242541 - 213 = 250234349 is a prime.

It is a super-2 number, since 2×2502425412 = 125242658652273362, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (250242547) 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, 2120641 + ... + 2120758.

It is an arithmetic number, because the mean of its divisors is an integer number (63621000).

Almost surely, 2250242541 is an apocalyptic number.

It is an amenable number.

250242541 is a deficient number, since it is larger than the sum of its proper divisors (4241459).

250242541 is an equidigital number, since it uses as much as digits as its factorization.

250242541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4241458.

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 250242541 is about 15819.0562613577. The cubic root of 250242541 is about 630.1641807760.

Adding to 250242541 its reverse (145242052), we get a palindrome (395484593).

The spelling of 250242541 in words is "two hundred fifty million, two hundred forty-two thousand, five hundred forty-one".

Divisors: 1 59 4241399 250242541