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352791049 = 1324321129
BaseRepresentation
bin10101000001110…
…010101000001001
3220120211122100011
4111001302220021
51210303303144
655001311521
711512450222
oct2501625011
9816748304
10352791049
11171161156
129a1955a1
1358122700
1434bd6249
1520e8aa34
hex15072a09

352791049 has 18 divisors (see below), whose sum is σ = 391453470. Its totient is φ = 317798208.

The previous prime is 352790959. The next prime is 352791053. The reversal of 352791049 is 940197253.

It can be written as a sum of positive squares in 3 ways, for example, as 20385225 + 332405824 = 4515^2 + 18232^2 .

It is a de Polignac number, because none of the positive numbers 2k-352791049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (352701049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 311917 + ... + 313045.

It is an arithmetic number, because the mean of its divisors is an integer number (21747415).

Almost surely, 2352791049 is an apocalyptic number.

It is an amenable number.

352791049 is a deficient number, since it is larger than the sum of its proper divisors (38662421).

352791049 is a wasteful number, since it uses less digits than its factorization.

352791049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1241 (or 1185 counting only the distinct ones).

The product of its (nonzero) digits is 68040, while the sum is 40.

The square root of 352791049 is about 18782.7327351480. The cubic root of 352791049 is about 706.5981877346.

The spelling of 352791049 in words is "three hundred fifty-two million, seven hundred ninety-one thousand, forty-nine".

Divisors: 1 13 43 169 559 1129 1849 7267 14677 24037 48547 190801 312481 631111 2087521 8204443 27137773 352791049