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207969242 = 21343186019
BaseRepresentation
bin11000110010101…
…01101111011010
3112111022221011112
430121111233122
5411220003432
632345300322
75103465215
oct1431255732
9474287145
10207969242
11a7436408
12597946a2
1334117730
141d89877c
15133d07b2
hexc655bda

207969242 has 16 divisors (see below), whose sum is σ = 343764960. Its totient is φ = 93753072.

The previous prime is 207969239. The next prime is 207969247. The reversal of 207969242 is 242969702.

It is a self number, because there is not a number n which added to its sum of digits gives 207969242.

It is not an unprimeable number, because it can be changed into a prime (207969247) 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, 91892 + ... + 94127.

It is an arithmetic number, because the mean of its divisors is an integer number (21485310).

Almost surely, 2207969242 is an apocalyptic number.

207969242 is a deficient number, since it is larger than the sum of its proper divisors (135795718).

207969242 is a wasteful number, since it uses less digits than its factorization.

207969242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186077.

The product of its (nonzero) digits is 108864, while the sum is 41.

The square root of 207969242 is about 14421.1387206420. The cubic root of 207969242 is about 592.4700069680.

The spelling of 207969242 in words is "two hundred seven million, nine hundred sixty-nine thousand, two hundred forty-two".

Divisors: 1 2 13 26 43 86 559 1118 186019 372038 2418247 4836494 7998817 15997634 103984621 207969242