Search a number
-
+
13868232511 = 717193603833
BaseRepresentation
bin11001110101001110…
…00110111100111111
31022210111112012120011
430322213012330333
5211400231420021
610212044204051
71000445013520
oct147247067477
938714465504
1013868232511
11597728a391
122830539627
131400224a53
14957bb6847
155627a5de1
hex33a9c6f3f

13868232511 has 16 divisors (see below), whose sum is σ = 16868706624. Its totient is φ = 11129831424.

The previous prime is 13868232479. The next prime is 13868232517. The reversal of 13868232511 is 11523286831.

It is a cyclic number.

It is not a de Polignac number, because 13868232511 - 25 = 13868232479 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13868232517) 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, 278950 + ... + 324883.

It is an arithmetic number, because the mean of its divisors is an integer number (1054294164).

Almost surely, 213868232511 is an apocalyptic number.

13868232511 is a deficient number, since it is larger than the sum of its proper divisors (3000474113).

13868232511 is a wasteful number, since it uses less digits than its factorization.

13868232511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 604050.

The product of its digits is 69120, while the sum is 40.

The spelling of 13868232511 in words is "thirteen billion, eight hundred sixty-eight million, two hundred thirty-two thousand, five hundred eleven".

Divisors: 1 7 17 119 193 1351 3281 22967 603833 4226831 10265161 71856127 116539769 815778383 1981176073 13868232511