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12168904958 = 271928592803
BaseRepresentation
bin10110101010101001…
…01100000011111110
31011102001221102101122
423111110230003332
5144410214424313
65331301510542
7610361662010
oct132524540376
934361842348
1012168904958
115185036451
122437412452
1311bc1525a2
148362281b0
154b34d6708
hex2d552c0fe

12168904958 has 48 divisors (see below), whose sum is σ = 22050207360. Its totient is φ = 4933246032.

The previous prime is 12168904903. The next prime is 12168904973. The reversal of 12168904958 is 85940986121.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4339985 + ... + 4342787.

It is an arithmetic number, because the mean of its divisors is an integer number (459379320).

Almost surely, 212168904958 is an apocalyptic number.

12168904958 is a deficient number, since it is larger than the sum of its proper divisors (9881302402).

12168904958 is a wasteful number, since it uses less digits than its factorization.

12168904958 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3709 (or 3690 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 53.

The spelling of 12168904958 in words is "twelve billion, one hundred sixty-eight million, nine hundred four thousand, nine hundred fifty-eight".

Divisors: 1 2 7 14 19 38 133 266 361 722 859 1718 2527 2803 5054 5606 6013 12026 16321 19621 32642 39242 53257 106514 114247 228494 310099 372799 620198 745598 1011883 2023766 2170693 2407777 4341386 4815554 7083181 14166362 16854439 33708878 45747763 91495526 320234341 640468682 869207497 1738414994 6084452479 12168904958