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531230623 = 7116899099
BaseRepresentation
bin11111101010011…
…110111110011111
31101000121022102021
4133222132332133
52041443334443
6124414041011
716110246220
oct3752367637
91330538367
10531230623
11252958480
12129aa9167
138609b261
14507a5247
15319869ed
hex1fa9ef9f

531230623 has 8 divisors (see below), whose sum is σ = 662313600. Its totient is φ = 413945880.

The previous prime is 531230599. The next prime is 531230647. The reversal of 531230623 is 326032135.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (531230599) and next prime (531230647).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 531230623 - 29 = 531230111 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 (531230653) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3449473 + ... + 3449626.

It is an arithmetic number, because the mean of its divisors is an integer number (82789200).

Almost surely, 2531230623 is an apocalyptic number.

531230623 is a deficient number, since it is larger than the sum of its proper divisors (131082977).

531230623 is a wasteful number, since it uses less digits than its factorization.

531230623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6899117.

The product of its (nonzero) digits is 3240, while the sum is 25.

The square root of 531230623 is about 23048.4407932511. The cubic root of 531230623 is about 809.8931033043.

Adding to 531230623 its reverse (326032135), we get a palindrome (857262758).

The spelling of 531230623 in words is "five hundred thirty-one million, two hundred thirty thousand, six hundred twenty-three".

Divisors: 1 7 11 77 6899099 48293693 75890089 531230623