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2119689430 = 25239779433
BaseRepresentation
bin111111001010111…
…1110010011010110
312110201120101020221
41332111332103112
513320120030210
6550200144554
7103346030365
oct17625762326
95421511227
102119689430
11998567051
124b1a6815a
1327a1c2b01
141617337dc
15c61561da
hex7e57e4d6

2119689430 has 32 divisors (see below), whose sum is σ = 3985827264. Its totient is φ = 810095616.

The previous prime is 2119689413. The next prime is 2119689433. The reversal of 2119689430 is 349869112.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2119689433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 219994 + ... + 229426.

It is an arithmetic number, because the mean of its divisors is an integer number (124557102).

Almost surely, 22119689430 is an apocalyptic number.

2119689430 is a deficient number, since it is larger than the sum of its proper divisors (1866137834).

2119689430 is a wasteful number, since it uses less digits than its factorization.

2119689430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10440.

The product of its (nonzero) digits is 93312, while the sum is 43.

The square root of 2119689430 is about 46040.0850346739. The cubic root of 2119689430 is about 1284.5689238229.

The spelling of 2119689430 in words is "two billion, one hundred nineteen million, six hundred eighty-nine thousand, four hundred thirty".

Divisors: 1 2 5 10 23 46 115 230 977 1954 4885 9433 9770 18866 22471 44942 47165 94330 112355 216959 224710 433918 1084795 2169590 9216041 18432082 46080205 92160410 211968943 423937886 1059844715 2119689430