Search a number
-
+
195657 = 372113
BaseRepresentation
bin101111110001001001
3100221101120
4233301021
522230112
64105453
71443300
oct576111
9327346
10195657
11124000
1295289
136b097
1451437
153ce8c
hex2fc49

195657 has 24 divisors (see below), whose sum is σ = 333792. Its totient is φ = 101640.

The previous prime is 195599. The next prime is 195659. The reversal of 195657 is 756591.

It is not a de Polignac number, because 195657 - 26 = 195593 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

Its product of digits (9450) is a multiple of the sum of its prime divisors (21).

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 195657.

It is not an unprimeable number, because it can be changed into a prime (195659) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17782 + ... + 17792.

It is an arithmetic number, because the mean of its divisors is an integer number (13908).

2195657 is an apocalyptic number.

It is an amenable number.

195657 is a deficient number, since it is larger than the sum of its proper divisors (138135).

195657 is an equidigital number, since it uses as much as digits as its factorization.

195657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50 (or 21 counting only the distinct ones).

The product of its digits is 9450, while the sum is 33.

The square root of 195657 is about 442.3313237834. The cubic root of 195657 is about 58.0539529669.

Multiplying 195657 by its sum of digits (33), we get a square (6456681 = 25412).

195657 divided by its sum of digits (33) gives a square (5929 = 772).

The spelling of 195657 in words is "one hundred ninety-five thousand, six hundred fifty-seven".

Divisors: 1 3 7 11 21 33 49 77 121 147 231 363 539 847 1331 1617 2541 3993 5929 9317 17787 27951 65219 195657