Search a number
-
+
13804047776681 = 1710311516849281
BaseRepresentation
bin1100100011100000000101…
…0111010011101110101001
31210212122122211020121222222
43020320001113103232221
53302131142212323211
645205254134523425
72623211113054541
oct310700127235651
953778584217888
1013804047776681
11444229a10aa78
12166b397806575
13791940413906
1435a195bba321
1518e11ceda1db
hexc8e015d3ba9

13804047776681 has 16 divisors (see below), whose sum is σ = 14770778001408. Its totient is φ = 12854728704000.

The previous prime is 13804047776573. The next prime is 13804047776683. The reversal of 13804047776681 is 18667774040831.

It is not a de Polignac number, because 13804047776681 - 210 = 13804047775657 is a prime.

It is a super-2 number, since 2×138040477766812 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13804047776683) 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, 1409240 + ... + 5440041.

It is an arithmetic number, because the mean of its divisors is an integer number (923173625088).

Almost surely, 213804047776681 is an apocalyptic number.

It is an amenable number.

13804047776681 is a deficient number, since it is larger than the sum of its proper divisors (966730224727).

13804047776681 is a wasteful number, since it uses less digits than its factorization.

13804047776681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6850552.

The product of its (nonzero) digits is 37933056, while the sum is 62.

The spelling of 13804047776681 in words is "thirteen trillion, eight hundred four billion, forty-seven million, seven hundred seventy-six thousand, six hundred eighty-one".

Divisors: 1 17 103 1151 1751 19567 118553 2015401 6849281 116437777 705475943 7883522431 11993091031 134019881327 812002810393 13804047776681