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352438431 = 3373175121
BaseRepresentation
bin10101000000011…
…100100010011111
3220120011201122020
4111000130202133
51210211012211
654545551223
711506451202
oct2500344237
9816151566
10352438431
11170a40234
129a045513
135802b067
1434b43939
1520e1b306
hex1501c89f

352438431 has 8 divisors (see below), whose sum is σ = 482618544. Its totient is φ = 228608640.

The previous prime is 352438417. The next prime is 352438433. The reversal of 352438431 is 134834253.

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

It is not a de Polignac number, because 352438431 - 215 = 352405663 is a prime.

It is a super-2 number, since 2×3524384312 = 248425695291483522, which contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 352438392 and 352438401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (352438433) 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 7 ways as a sum of consecutive naturals, for example, 1587450 + ... + 1587671.

It is an arithmetic number, because the mean of its divisors is an integer number (60327318).

Almost surely, 2352438431 is an apocalyptic number.

352438431 is a deficient number, since it is larger than the sum of its proper divisors (130180113).

352438431 is a wasteful number, since it uses less digits than its factorization.

352438431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3175161.

The product of its digits is 34560, while the sum is 33.

The square root of 352438431 is about 18773.3436286667. The cubic root of 352438431 is about 706.3626920600.

The spelling of 352438431 in words is "three hundred fifty-two million, four hundred thirty-eight thousand, four hundred thirty-one".

Divisors: 1 3 37 111 3175121 9525363 117479477 352438431