Search a number
-
+
250131 = 3743277
BaseRepresentation
bin111101000100010011
3110201010010
4331010103
531001011
65210003
72061150
oct750423
9421103
10250131
11160a22
12100903
1389b0b
1467227
154e1a6
hex3d113

250131 has 16 divisors (see below), whose sum is σ = 391424. Its totient is φ = 139104.

The previous prime is 250123. The next prime is 250147. The reversal of 250131 is 131052.

250131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 250131 - 23 = 250123 is a prime.

It is a super-2 number, since 2×2501312 = 125131034322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 250131.

It is not an unprimeable number, because it can be changed into a prime (250031) 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, 765 + ... + 1041.

It is an arithmetic number, because the mean of its divisors is an integer number (24464).

2250131 is an apocalyptic number.

250131 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

250131 is a deficient number, since it is larger than the sum of its proper divisors (141293).

250131 is a wasteful number, since it uses less digits than its factorization.

250131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330.

The product of its (nonzero) digits is 30, while the sum is 12.

The square root of 250131 is about 500.1309828435. The cubic root of 250131 is about 63.0070538839.

Adding to 250131 its reverse (131052), we get a palindrome (381183).

The spelling of 250131 in words is "two hundred fifty thousand, one hundred thirty-one".

Divisors: 1 3 7 21 43 129 277 301 831 903 1939 5817 11911 35733 83377 250131