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207198134 = 21113724469
BaseRepresentation
bin11000101100110…
…01011110110110
3112102212202101222
430112121132312
5411020320014
632320550342
75064104123
oct1426313666
9472782358
10207198134
11a6a5a030
12594823b2
1333c07760
141d73774a
15132cc08e
hexc5997b6

207198134 has 16 divisors (see below), whose sum is σ = 365132880. Its totient is φ = 86936160.

The previous prime is 207198077. The next prime is 207198139. The reversal of 207198134 is 431891702.

It is a junction number, because it is equal to n+sod(n) for n = 207198094 and 207198103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (207198139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 361949 + ... + 362520.

It is an arithmetic number, because the mean of its divisors is an integer number (22820805).

Almost surely, 2207198134 is an apocalyptic number.

207198134 is a deficient number, since it is larger than the sum of its proper divisors (157934746).

207198134 is a wasteful number, since it uses less digits than its factorization.

207198134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 724495.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 207198134 is about 14394.3785555334. The cubic root of 207198134 is about 591.7368469906.

The spelling of 207198134 in words is "two hundred seven million, one hundred ninety-eight thousand, one hundred thirty-four".

Divisors: 1 2 11 13 22 26 143 286 724469 1448938 7969159 9418097 15938318 18836194 103599067 207198134