Search a number
-
+
70243349 = 1138316673
BaseRepresentation
bin1000010111111…
…01010000010101
311220011201202112
410023331100111
5120440241344
610545320405
71512026051
oct413752025
9156151675
1070243349
1136717960
121b636105
1311725517
149486c61
156277c9e
hex42fd415

70243349 has 8 divisors (see below), whose sum is σ = 76833792. Its totient is φ = 63687040.

The previous prime is 70243343. The next prime is 70243351. The reversal of 70243349 is 94334207.

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 70243349 - 28 = 70243093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70243343) 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, 4124 + ... + 12549.

It is an arithmetic number, because the mean of its divisors is an integer number (9604224).

Almost surely, 270243349 is an apocalyptic number.

It is an amenable number.

70243349 is a deficient number, since it is larger than the sum of its proper divisors (6590443).

70243349 is a wasteful number, since it uses less digits than its factorization.

70243349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17067.

The product of its (nonzero) digits is 18144, while the sum is 32.

The square root of 70243349 is about 8381.1305323327. The cubic root of 70243349 is about 412.6055541324.

The spelling of 70243349 in words is "seventy million, two hundred forty-three thousand, three hundred forty-nine".

Divisors: 1 11 383 4213 16673 183403 6385759 70243349