Search a number
-
+
531374597 = 1340874969
BaseRepresentation
bin11111101011000…
…010001000000101
31101000212121220122
4133223002020011
52042012441342
6124421111325
716111416035
oct3753021005
91330777818
10531374597
11252a46666
12129b58545
138611b950
14508018c5
15319b44d2
hex1fac2205

531374597 has 4 divisors (see below), whose sum is σ = 572249580. Its totient is φ = 490499616.

The previous prime is 531374563. The next prime is 531374603. The reversal of 531374597 is 795473135.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 795473135 = 5159094627.

It can be written as a sum of positive squares in 2 ways, for example, as 335402596 + 195972001 = 18314^2 + 13999^2 .

It is a cyclic number.

It is not a de Polignac number, because 531374597 - 224 = 514597381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531374537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20437472 + ... + 20437497.

It is an arithmetic number, because the mean of its divisors is an integer number (143062395).

Almost surely, 2531374597 is an apocalyptic number.

It is an amenable number.

531374597 is a deficient number, since it is larger than the sum of its proper divisors (40874983).

531374597 is a wasteful number, since it uses less digits than its factorization.

531374597 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40874982.

The product of its digits is 396900, while the sum is 44.

The square root of 531374597 is about 23051.5638731952. The cubic root of 531374597 is about 809.9662623757.

The spelling of 531374597 in words is "five hundred thirty-one million, three hundred seventy-four thousand, five hundred ninety-seven".

Divisors: 1 13 40874969 531374597