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207390011 = 239016957
BaseRepresentation
bin11000101110010…
…00010100111011
3112110020111121112
430113020110323
5411042440021
632325030535
75065533413
oct1427102473
9473214545
10207390011
11a7080204
125955544b
1333c73baa
141d787643
1513318d5b
hexc5c853b

207390011 has 4 divisors (see below), whose sum is σ = 216406992. Its totient is φ = 198373032.

The previous prime is 207389993. The next prime is 207390017. The reversal of 207390011 is 110093702.

207390011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 207390011 - 218 = 207127867 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 9016957 = 207390011 / (2 + 0 + 7 + 3 + 9 + 0 + 0 + 1 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (207390017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4508456 + ... + 4508501.

It is an arithmetic number, because the mean of its divisors is an integer number (54101748).

Almost surely, 2207390011 is an apocalyptic number.

207390011 is a deficient number, since it is larger than the sum of its proper divisors (9016981).

207390011 is an equidigital number, since it uses as much as digits as its factorization.

207390011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9016980.

The product of its (nonzero) digits is 378, while the sum is 23.

The square root of 207390011 is about 14401.0420109102. The cubic root of 207390011 is about 591.9194510493.

The spelling of 207390011 in words is "two hundred seven million, three hundred ninety thousand, eleven".

Divisors: 1 23 9016957 207390011