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207289134 = 232136831297
BaseRepresentation
bin11000101101011…
…11101100101110
3112110001101020100
430112233230232
5411031223014
632322531530
75064633333
oct1426575456
9473041210
10207289134
11a7011438
1259506ba6
1333c39cc0
141d75c98a
15132e9009
hexc5afb2e

207289134 has 48 divisors (see below), whose sum is σ = 484756272. Its totient is φ = 63638784.

The previous prime is 207289073. The next prime is 207289139. The reversal of 207289134 is 431982702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (207289139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 159174 + ... + 160470.

It is an arithmetic number, because the mean of its divisors is an integer number (10099089).

Almost surely, 2207289134 is an apocalyptic number.

207289134 is an abundant number, since it is smaller than the sum of its proper divisors (277467138).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

207289134 is a wasteful number, since it uses less digits than its factorization.

207289134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2001 (or 1998 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 207289134 is about 14397.5391647323. The cubic root of 207289134 is about 591.8234632336.

The spelling of 207289134 in words is "two hundred seven million, two hundred eighty-nine thousand, one hundred thirty-four".

Divisors: 1 2 3 6 9 13 18 26 39 78 117 234 683 1297 1366 2049 2594 3891 4098 6147 7782 8879 11673 12294 16861 17758 23346 26637 33722 50583 53274 79911 101166 151749 159822 303498 885851 1771702 2657553 5315106 7972659 11516063 15945318 23032126 34548189 69096378 103644567 207289134