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352103857 = 7253135581
BaseRepresentation
bin10100111111001…
…010110110110001
3220112112201200121
4110333022312301
51210114310412
654534450241
711503555600
oct2477126661
9815481617
10352103857
11170831926
1299b03981
1357c419a1
1434a97a37
1520da2107
hex14fcadb1

352103857 has 12 divisors (see below), whose sum is σ = 417321396. Its totient is φ = 296106720.

The previous prime is 352103833. The next prime is 352103861. The reversal of 352103857 is 758301253.

It can be written as a sum of positive squares in 2 ways, for example, as 201526416 + 150577441 = 14196^2 + 12271^2 .

It is not a de Polignac number, because 352103857 - 223 = 343715249 is a prime.

It is a super-2 number, since 2×3521038572 = 247954252228552898, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (352103057) 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 11 ways as a sum of consecutive naturals, for example, 65194 + ... + 70387.

It is an arithmetic number, because the mean of its divisors is an integer number (34776783).

Almost surely, 2352103857 is an apocalyptic number.

It is an amenable number.

352103857 is a deficient number, since it is larger than the sum of its proper divisors (65217539).

352103857 is a wasteful number, since it uses less digits than its factorization.

352103857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135648 (or 135641 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 34.

The square root of 352103857 is about 18764.4306335151. The cubic root of 352103857 is about 706.1391017874.

The spelling of 352103857 in words is "three hundred fifty-two million, one hundred three thousand, eight hundred fifty-seven".

Divisors: 1 7 49 53 371 2597 135581 949067 6643469 7185793 50300551 352103857