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200122007 = 237784191
BaseRepresentation
bin10111110110110…
…01111010010111
3111221120020210012
423323121322113
5402212401012
631505150435
74650003041
oct1373317227
9457506705
10200122007
11a2a66698
125702b41b
13325ca9b7
141c814a91
1512880622
hexbed9e97

200122007 has 4 divisors (see below), whose sum is σ = 200208576. Its totient is φ = 200035440.

The previous prime is 200121991. The next prime is 200122031. The reversal of 200122007 is 700221002.

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

It is a cyclic number.

It is not a de Polignac number, because 200122007 - 24 = 200121991 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 200121982 and 200122000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200121007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39719 + ... + 44472.

It is an arithmetic number, because the mean of its divisors is an integer number (50052144).

Almost surely, 2200122007 is an apocalyptic number.

200122007 is a deficient number, since it is larger than the sum of its proper divisors (86569).

200122007 is an equidigital number, since it uses as much as digits as its factorization.

200122007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86568.

The product of its (nonzero) digits is 56, while the sum is 14.

The square root of 200122007 is about 14146.4485649226. The cubic root of 200122007 is about 584.9224403470.

Adding to 200122007 its reverse (700221002), we get a palindrome (900343009).

The spelling of 200122007 in words is "two hundred million, one hundred twenty-two thousand, seven".

Divisors: 1 2377 84191 200122007