Search a number
-
+
157232 = 2431317
BaseRepresentation
bin100110011000110000
321222200102
4212120300
520012412
63211532
71223255
oct463060
9258612
10157232
11a8149
1276ba8
135674a
144142c
15318c2
hex26630

157232 has 20 divisors (see below), whose sum is σ = 315456. Its totient is φ = 75840.

The previous prime is 157231. The next prime is 157243. The reversal of 157232 is 232751.

157232 is an admirable number.

It is a d-powerful number, because it can be written as 1 + 53 + 27 + 76 + 38 + 215 .

It is not an unprimeable number, because it can be changed into a prime (157231) 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, 338 + ... + 654.

2157232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 157232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (157728).

157232 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

157232 is a wasteful number, since it uses less digits than its factorization.

157232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 356 (or 350 counting only the distinct ones).

The product of its digits is 420, while the sum is 20.

The square root of 157232 is about 396.5249046403. The cubic root of 157232 is about 53.9734666172.

Adding to 157232 its reverse (232751), we get a palindrome (389983).

The spelling of 157232 in words is "one hundred fifty-seven thousand, two hundred thirty-two".

Divisors: 1 2 4 8 16 31 62 124 248 317 496 634 1268 2536 5072 9827 19654 39308 78616 157232