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11868041465 = 571494874673
BaseRepresentation
bin10110000110110001…
…11111000011111001
31010122002210222021022
423003120333003321
5143301204311330
65241353152225
7600046454660
oct130330770371
933562728238
1011868041465
115040222235
1223726bb675
131171a11757
148082abdd7
15496da6ae5
hex2c363f0f9

11868041465 has 32 divisors (see below), whose sum is σ = 16422566400. Its totient is φ = 8065142784.

The previous prime is 11868041443. The next prime is 11868041489. The reversal of 11868041465 is 56414086811.

It is a cyclic number.

It is not a de Polignac number, because 11868041465 - 222 = 11863847161 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2537369 + ... + 2542041.

It is an arithmetic number, because the mean of its divisors is an integer number (513205200).

Almost surely, 211868041465 is an apocalyptic number.

It is an amenable number.

11868041465 is a deficient number, since it is larger than the sum of its proper divisors (4554524935).

11868041465 is a wasteful number, since it uses less digits than its factorization.

11868041465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5321.

The product of its (nonzero) digits is 184320, while the sum is 44.

The spelling of 11868041465 in words is "eleven billion, eight hundred sixty-eight million, forty-one thousand, four hundred sixty-five".

Divisors: 1 5 7 35 149 487 745 1043 2435 3409 4673 5215 17045 23365 32711 72563 163555 362815 507941 696277 2275751 2539705 3481385 4873939 11378755 15930257 24369695 79651285 339086899 1695434495 2373608293 11868041465