Search a number
-
+
75461 = 591279
BaseRepresentation
bin10010011011000101
310211111212
4102123011
54403321
61341205
7433001
oct223305
9124455
1075461
1151771
1237805
1328469
141d701
151755b
hex126c5

75461 has 4 divisors (see below), whose sum is σ = 76800. Its totient is φ = 74124.

The previous prime is 75437. The next prime is 75479. The reversal of 75461 is 16457.

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, and also an emirpimes, since its reverse is a distinct semiprime: 16457 = 72351.

It is a cyclic number.

It is not a de Polignac number, because 75461 - 214 = 59077 is a prime.

It is a Duffinian number.

It is a plaindrome in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75401) 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, 581 + ... + 698.

It is an arithmetic number, because the mean of its divisors is an integer number (19200).

275461 is an apocalyptic number.

It is an amenable number.

75461 is a deficient number, since it is larger than the sum of its proper divisors (1339).

75461 is a wasteful number, since it uses less digits than its factorization.

75461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1338.

The product of its digits is 840, while the sum is 23.

The square root of 75461 is about 274.7016563474. The cubic root of 75461 is about 42.2578618238.

The spelling of 75461 in words is "seventy-five thousand, four hundred sixty-one".

Divisors: 1 59 1279 75461