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207742404 = 2235326163
BaseRepresentation
bin11000110000111…
…10010111000100
3112110220102000010
430120132113010
5411140224104
632340350220
75101531662
oct1430362704
9473812003
10207742404
11a72a0a41
12596a5370
13340683cc
141d839c32
1513388489
hexc61e5c4

207742404 has 36 divisors (see below), whose sum is σ = 494130896. Its totient is φ = 67929888.

The previous prime is 207742391. The next prime is 207742421. The reversal of 207742404 is 404247702.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30627 + ... + 36789.

Almost surely, 2207742404 is an apocalyptic number.

It is an amenable number.

207742404 is an abundant number, since it is smaller than the sum of its proper divisors (286388492).

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

207742404 is a wasteful number, since it uses less digits than its factorization.

207742404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6276 (or 6221 counting only the distinct ones).

The product of its (nonzero) digits is 12544, while the sum is 30.

The square root of 207742404 is about 14413.2718006704. The cubic root of 207742404 is about 592.2545206097.

The spelling of 207742404 in words is "two hundred seven million, seven hundred forty-two thousand, four hundred four".

Divisors: 1 2 3 4 6 12 53 106 159 212 318 636 2809 5618 6163 8427 11236 12326 16854 18489 24652 33708 36978 73956 326639 653278 979917 1306556 1959834 3919668 17311867 34623734 51935601 69247468 103871202 207742404