Search a number
-
+
207068397 = 369022799
BaseRepresentation
bin11000101011110…
…01110011101101
3112102122011102220
430111321303231
5411002142042
632314105553
75063023644
oct1425716355
9472564386
10207068397
11a6980608
125941b2b9
1333b906a3
141d70235b
15132a38ec
hexc579ced

207068397 has 4 divisors (see below), whose sum is σ = 276091200. Its totient is φ = 138045596.

The previous prime is 207068383. The next prime is 207068431. The reversal of 207068397 is 793860702.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 207068397 - 27 = 207068269 is a prime.

It is a super-2 number, since 2×2070683972 = 85754642072299218, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (207068377) 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 3 ways as a sum of consecutive naturals, for example, 34511397 + ... + 34511402.

It is an arithmetic number, because the mean of its divisors is an integer number (69022800).

Almost surely, 2207068397 is an apocalyptic number.

It is an amenable number.

207068397 is a deficient number, since it is larger than the sum of its proper divisors (69022803).

207068397 is an equidigital number, since it uses as much as digits as its factorization.

207068397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69022802.

The product of its (nonzero) digits is 127008, while the sum is 42.

The square root of 207068397 is about 14389.8713336847. The cubic root of 207068397 is about 591.6133159680.

The spelling of 207068397 in words is "two hundred seven million, sixty-eight thousand, three hundred ninety-seven".

Divisors: 1 3 69022799 207068397