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623141 = 3831627
BaseRepresentation
bin10011000001000100101
31011122210022
42120020211
5124420031
621204525
75203511
oct2301045
91148708
10623141
113961a2
12260745
1318a82c
14123141
15c497b
hex98225

623141 has 4 divisors (see below), whose sum is σ = 625152. Its totient is φ = 621132.

The previous prime is 623107. The next prime is 623171. The reversal of 623141 is 141326.

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, and also an emirpimes, since its reverse is a distinct semiprime: 141326 = 270663.

It is a cyclic number.

It is not a de Polignac number, because 623141 - 214 = 606757 is a prime.

It is a Duffinian number.

It is a Curzon 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 623141.

It is not an unprimeable number, because it can be changed into a prime (623171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 431 + ... + 1196.

It is an arithmetic number, because the mean of its divisors is an integer number (156288).

2623141 is an apocalyptic number.

It is an amenable number.

623141 is a deficient number, since it is larger than the sum of its proper divisors (2011).

623141 is a wasteful number, since it uses less digits than its factorization.

623141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2010.

The product of its digits is 144, while the sum is 17.

The square root of 623141 is about 789.3928046290. The cubic root of 623141 is about 85.4139439412.

Adding to 623141 its reverse (141326), we get a palindrome (764467).

The spelling of 623141 in words is "six hundred twenty-three thousand, one hundred forty-one".

Divisors: 1 383 1627 623141