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207200142 = 23241280759
BaseRepresentation
bin11000101100110…
…01111110001110
3112102212212011100
430112121332032
5411020401032
632321003530
75064113022
oct1426317616
9472785140
10207200142
11a6a60596
12594835a6
1333c08646
141d738382
15132cc97c
hexc599f8e

207200142 has 24 divisors (see below), whose sum is σ = 459884880. Its totient is φ = 67381920.

The previous prime is 207200141. The next prime is 207200167. The reversal of 207200142 is 241002702.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (207200141) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 139642 + ... + 141117.

It is an arithmetic number, because the mean of its divisors is an integer number (19161870).

Almost surely, 2207200142 is an apocalyptic number.

207200142 is an abundant number, since it is smaller than the sum of its proper divisors (252684738).

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

207200142 is a wasteful number, since it uses less digits than its factorization.

207200142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280808 (or 280805 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 18.

The square root of 207200142 is about 14394.4483048153. The cubic root of 207200142 is about 591.7387585325.

Adding to 207200142 its reverse (241002702), we get a palindrome (448202844).

The spelling of 207200142 in words is "two hundred seven million, two hundred thousand, one hundred forty-two".

Divisors: 1 2 3 6 9 18 41 82 123 246 369 738 280759 561518 842277 1684554 2526831 5053662 11511119 23022238 34533357 69066714 103600071 207200142