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531102342 = 2388517057
BaseRepresentation
bin11111101001111…
…111101010000110
31101000100210110010
4133221333222012
52041430233332
6124411211050
716106203221
oct3751775206
91330323403
10531102342
11252880061
12129a46a86
1386054a54
14507705b8
153195d9cc
hex1fa7fa86

531102342 has 8 divisors (see below), whose sum is σ = 1062204696. Its totient is φ = 177034112.

The previous prime is 531102301. The next prime is 531102343. The reversal of 531102342 is 243201135.

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

531102342 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531102343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44258523 + ... + 44258534.

It is an arithmetic number, because the mean of its divisors is an integer number (132775587).

Almost surely, 2531102342 is an apocalyptic number.

531102342 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.

531102342 is a wasteful number, since it uses less digits than its factorization.

531102342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88517062.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 531102342 is about 23045.6577688726. The cubic root of 531102342 is about 809.8279073508.

Adding to 531102342 its reverse (243201135), we get a palindrome (774303477).

The spelling of 531102342 in words is "five hundred thirty-one million, one hundred two thousand, three hundred forty-two".

Divisors: 1 2 3 6 88517057 177034114 265551171 531102342