Search a number
-
+
157441 = 296189
BaseRepresentation
bin100110011100000001
321222222011
4212130001
520014231
63212521
71224004
oct463401
9258864
10157441
11a8319
1277141
135687b
144153b
15319b1
hex26701

157441 has 8 divisors (see below), whose sum is σ = 167400. Its totient is φ = 147840.

The previous prime is 157433. The next prime is 157457. The reversal of 157441 is 144751.

It can be written as a sum of positive squares in 4 ways, for example, as 625 + 156816 = 25^2 + 396^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 157441 - 23 = 157433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (157411) 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 7 ways as a sum of consecutive naturals, for example, 1725 + ... + 1813.

It is an arithmetic number, because the mean of its divisors is an integer number (20925).

2157441 is an apocalyptic number.

It is an amenable number.

157441 is a deficient number, since it is larger than the sum of its proper divisors (9959).

157441 is an equidigital number, since it uses as much as digits as its factorization.

157441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179.

The product of its digits is 560, while the sum is 22.

The square root of 157441 is about 396.7883566840. The cubic root of 157441 is about 53.9973706996.

The spelling of 157441 in words is "one hundred fifty-seven thousand, four hundred forty-one".

Divisors: 1 29 61 89 1769 2581 5429 157441