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207297103 = 1315945931
BaseRepresentation
bin11000101101100…
…01101001001111
3112110001210011111
430112301221033
5411032001403
632323032451
75064665506
oct1426615117
9473053144
10207297103
11a7017422
125950b727
1333c40810
141d76183d
15132eb56d
hexc5b1a4f

207297103 has 4 divisors (see below), whose sum is σ = 223243048. Its totient is φ = 191351160.

The previous prime is 207297089. The next prime is 207297113. The reversal of 207297103 is 301792702.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 301792702 = 2150896351.

It is not a de Polignac number, because 207297103 - 29 = 207296591 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 (207297113) 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, 7972953 + ... + 7972978.

It is an arithmetic number, because the mean of its divisors is an integer number (55810762).

Almost surely, 2207297103 is an apocalyptic number.

207297103 is a deficient number, since it is larger than the sum of its proper divisors (15945945).

207297103 is a wasteful number, since it uses less digits than its factorization.

207297103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15945944.

The product of its (nonzero) digits is 5292, while the sum is 31.

The square root of 207297103 is about 14397.8159107554. The cubic root of 207297103 is about 591.8310471344.

The spelling of 207297103 in words is "two hundred seven million, two hundred ninety-seven thousand, one hundred three".

Divisors: 1 13 15945931 207297103