Search a number
-
+
13807995831 = 337151483829
BaseRepresentation
bin11001101110000010…
…10100101110110111
31022122022011212101000
430313001110232313
5211234321331311
610202053134343
7666114012420
oct146701245667
938568155330
1013807995831
115946287703
12281432a3b3
1313c08c4146
1494dbb6647
1555c358056
hex337054bb7

13807995831 has 32 divisors (see below), whose sum is σ = 23533491200. Its totient is φ = 7838013600.

The previous prime is 13807995821. The next prime is 13807995863. The reversal of 13807995831 is 13859970831.

It is not a de Polignac number, because 13807995831 - 225 = 13774441399 is a prime.

It is a super-2 number, since 2×138079958312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13807995811) by changing a digit.

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, 213376 + ... + 270453.

It is an arithmetic number, because the mean of its divisors is an integer number (735421600).

Almost surely, 213807995831 is an apocalyptic number.

13807995831 is a deficient number, since it is larger than the sum of its proper divisors (9725495369).

13807995831 is a wasteful number, since it uses less digits than its factorization.

13807995831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 483996 (or 483990 counting only the distinct ones).

The product of its (nonzero) digits is 1632960, while the sum is 54.

The spelling of 13807995831 in words is "thirteen billion, eight hundred seven million, nine hundred ninety-five thousand, eight hundred thirty-one".

Divisors: 1 3 7 9 21 27 63 151 189 453 1057 1359 3171 4077 9513 28539 483829 1451487 3386803 4354461 10160409 13063383 30481227 73058179 91443681 219174537 511407253 657523611 1534221759 1972570833 4602665277 13807995831