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14969387918 = 219472383407
BaseRepresentation
bin11011111000011111…
…01011101110001110
31102122020112200210202
431330033223232032
5221124130403133
610513221533502
71036645461242
oct157417535616
942566480722
1014969387918
116391913781
122a99274292
1315473bb5b4
14a20136422
155c92b92e8
hex37c3ebb8e

14969387918 has 16 divisors (see below), whose sum is σ = 23641163520. Its totient is φ = 7089176376.

The previous prime is 14969387891. The next prime is 14969387929. The reversal of 14969387918 is 81978396941.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137771 + ... + 221177.

It is an arithmetic number, because the mean of its divisors is an integer number (1477572720).

Almost surely, 214969387918 is an apocalyptic number.

14969387918 is a deficient number, since it is larger than the sum of its proper divisors (8671775602).

14969387918 is a wasteful number, since it uses less digits than its factorization.

14969387918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88151.

The product of its digits is 23514624, while the sum is 65.

The spelling of 14969387918 in words is "fourteen billion, nine hundred sixty-nine million, three hundred eighty-seven thousand, nine hundred eighteen".

Divisors: 1 2 19 38 4723 9446 83407 89737 166814 179474 1584733 3169466 393931261 787862522 7484693959 14969387918