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207020077 = 1131607097
BaseRepresentation
bin11000101011011…
…10000000101101
3112102112201011021
430111232000231
5410444120302
632313054141
75062433035
oct1425560055
9472481137
10207020077
11a6948280
12593b7351
1333b746b4
141d6cc8c5
1513294437
hexc56e02d

207020077 has 8 divisors (see below), whose sum is σ = 233125632. Its totient is φ = 182128800.

The previous prime is 207020063. The next prime is 207020081. The reversal of 207020077 is 770020702.

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 207020077 - 227 = 72802349 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 (207020057) 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, 303208 + ... + 303889.

It is an arithmetic number, because the mean of its divisors is an integer number (29140704).

Almost surely, 2207020077 is an apocalyptic number.

It is an amenable number.

207020077 is a deficient number, since it is larger than the sum of its proper divisors (26105555).

207020077 is a wasteful number, since it uses less digits than its factorization.

207020077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 607139.

The product of its (nonzero) digits is 1372, while the sum is 25.

The square root of 207020077 is about 14388.1922770027. The cubic root of 207020077 is about 591.5672941708.

Adding to 207020077 its reverse (770020702), we get a palindrome (977040779).

The spelling of 207020077 in words is "two hundred seven million, twenty thousand, seventy-seven".

Divisors: 1 11 31 341 607097 6678067 18820007 207020077