Search a number
-
+
352542431 = 16311711847
BaseRepresentation
bin10101000000110…
…101111011011111
3220120101000022002
4111000311323133
51210222324211
654552112515
711510363333
oct2500657337
9816330262
10352542431
1117100138a
129a09573b
13580664b7
1434b6d7c3
1520e3c03b
hex15035edf

352542431 has 8 divisors (see below), whose sum is σ = 355200384. Its totient is φ = 349890840.

The previous prime is 352542427. The next prime is 352542479. The reversal of 352542431 is 134245253.

It is a happy number.

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 352542431 - 22 = 352542427 is a prime.

It is a super-2 number, since 2×3525424312 = 248572331310779522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 352542394 and 352542403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (352542731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 189950 + ... + 191796.

It is an arithmetic number, because the mean of its divisors is an integer number (44400048).

Almost surely, 2352542431 is an apocalyptic number.

352542431 is a deficient number, since it is larger than the sum of its proper divisors (2657953).

352542431 is a wasteful number, since it uses less digits than its factorization.

352542431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3181.

The product of its digits is 14400, while the sum is 29.

The square root of 352542431 is about 18776.1133092022. The cubic root of 352542431 is about 706.4321647100.

Adding to 352542431 its reverse (134245253), we get a palindrome (486787684).

The spelling of 352542431 in words is "three hundred fifty-two million, five hundred forty-two thousand, four hundred thirty-one".

Divisors: 1 163 1171 1847 190873 301061 2162837 352542431