[go: up one dir, main page]

Search a number
-
+
115472 = 2471031
BaseRepresentation
bin11100001100010000
312212101202
4130030100
512143342
62250332
7660440
oct341420
9185352
10115472
1179835
12569a8
1340736
1430120
1524332
hex1c310

115472 has 20 divisors (see below), whose sum is σ = 255936. Its totient is φ = 49440.

The previous prime is 115471. The next prime is 115499. The reversal of 115472 is 274511.

It is a Smith number, since the sum of its digits (20) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (115471) 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, 404 + ... + 627.

115472 is a Friedman number, since it can be written as 112*(7+4^5), using all its digits and the basic arithmetic operations.

2115472 is an apocalyptic number.

It is an amenable number.

115472 is an abundant number, since it is smaller than the sum of its proper divisors (140464).

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

115472 is a wasteful number, since it uses less digits than its factorization.

115472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1046 (or 1040 counting only the distinct ones).

The product of its digits is 280, while the sum is 20.

The square root of 115472 is about 339.8117125704. The cubic root of 115472 is about 48.6958812101.

Adding to 115472 its reverse (274511), we get a palindrome (389983).

The spelling of 115472 in words is "one hundred fifteen thousand, four hundred seventy-two".

Divisors: 1 2 4 7 8 14 16 28 56 112 1031 2062 4124 7217 8248 14434 16496 28868 57736 115472