Search a number
-
+
13143361869 = 3211731818647
BaseRepresentation
bin11000011110110011…
…11100100101001101
31020220222112221222100
430033121330211031
5203404200034434
610012111505313
7643463506161
oct141731744515
936828487870
1013143361869
1156350a3340
122669828239
131315cb8301
148c9806ca1
1551dd1e699
hex30f67c94d

13143361869 has 24 divisors (see below), whose sum is σ = 20994472512. Its totient is φ = 7856550720.

The previous prime is 13143361867. The next prime is 13143361871. The reversal of 13143361869 is 96816334131.

It is a happy number.

13143361869 is a `hidden beast` number, since 1 + 31 + 433 + 6 + 186 + 9 = 666.

It is an interprime number because it is at equal distance from previous prime (13143361867) and next prime (13143361871).

It is not a de Polignac number, because 13143361869 - 21 = 13143361867 is a prime.

It is a super-2 number, since 2×131433618692 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13143361867) 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 23 ways as a sum of consecutive naturals, for example, 902097 + ... + 916550.

It is an arithmetic number, because the mean of its divisors is an integer number (874769688).

Almost surely, 213143361869 is an apocalyptic number.

It is an amenable number.

13143361869 is a deficient number, since it is larger than the sum of its proper divisors (7851110643).

13143361869 is a wasteful number, since it uses less digits than its factorization.

13143361869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1818737 (or 1818734 counting only the distinct ones).

The product of its digits is 279936, while the sum is 45.

The spelling of 13143361869 in words is "thirteen billion, one hundred forty-three million, three hundred sixty-one thousand, eight hundred sixty-nine".

Divisors: 1 3 9 11 33 73 99 219 657 803 2409 7227 1818647 5455941 16367823 20005117 60015351 132761231 180046053 398283693 1194851079 1460373541 4381120623 13143361869