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252141 = 384047
BaseRepresentation
bin111101100011101101
3110210212120
4331203231
531032031
65223153
72100051
oct754355
9423776
10252141
1116248a
12101ab9
138a9c6
1467c61
154ea96
hex3d8ed

252141 has 4 divisors (see below), whose sum is σ = 336192. Its totient is φ = 168092.

The previous prime is 252139. The next prime is 252143. The reversal of 252141 is 141252.

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 an interprime number because it is at equal distance from previous prime (252139) and next prime (252143).

It is a cyclic number.

It is not a de Polignac number, because 252141 - 21 = 252139 is a prime.

It is a D-number.

It is an alternating number because its digits alternate between even and odd.

It is a self number, because there is not a number n which added to its sum of digits gives 252141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252143) 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, 42021 + ... + 42026.

It is an arithmetic number, because the mean of its divisors is an integer number (84048).

2252141 is an apocalyptic number.

It is an amenable number.

252141 is a deficient number, since it is larger than the sum of its proper divisors (84051).

252141 is an equidigital number, since it uses as much as digits as its factorization.

252141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84050.

The product of its digits is 80, while the sum is 15.

The square root of 252141 is about 502.1364356427. The cubic root of 252141 is about 63.1753742920.

Adding to 252141 its reverse (141252), we get a palindrome (393393).

Subtracting from 252141 its reverse (141252), we obtain a square (110889 = 3332).

It can be divided in two parts, 252 and 141, that added together give a palindrome (393).

The spelling of 252141 in words is "two hundred fifty-two thousand, one hundred forty-one".

Divisors: 1 3 84047 252141