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245970346 = 2122985173
BaseRepresentation
bin11101010100100…
…11010110101010
3122010211120212211
432222103112222
51000432022341
640223555334
76044466466
oct1652232652
9563746784
10245970346
11116931186
126a45bb4a
133bc614ab
142494b4a6
15168da181
hexea935aa

245970346 has 4 divisors (see below), whose sum is σ = 368955522. Its totient is φ = 122985172.

The previous prime is 245970343. The next prime is 245970359. The reversal of 245970346 is 643079542.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 156875625 + 89094721 = 12525^2 + 9439^2 .

It is a super-2 number, since 2×2459703462 = 121002822222719432, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) 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 = 245970299 and 245970308.

It is not an unprimeable number, because it can be changed into a prime (245970343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61492585 + ... + 61492588.

Almost surely, 2245970346 is an apocalyptic number.

245970346 is a deficient number, since it is larger than the sum of its proper divisors (122985176).

245970346 is a wasteful number, since it uses less digits than its factorization.

245970346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122985175.

The product of its (nonzero) digits is 181440, while the sum is 40.

The square root of 245970346 is about 15683.4417778752. The cubic root of 245970346 is about 626.5574775181.

The spelling of 245970346 in words is "two hundred forty-five million, nine hundred seventy thousand, three hundred forty-six".

Divisors: 1 2 122985173 245970346