Search a number
-
+
134040881 = 1349920663
BaseRepresentation
bin1111111110101…
…00110100110001
3100100012222112002
413333110310301
5233303302011
621144543345
73215220512
oct777246461
9310188462
10134040881
1169731997
1238a81b55
1321a01b40
1413b32a09
15bb7ac3b
hex7fd4d31

134040881 has 8 divisors (see below), whose sum is σ = 144648000. Its totient is φ = 123476112.

The previous prime is 134040859. The next prime is 134040883. The reversal of 134040881 is 188040431.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 134040881 - 218 = 133778737 is a prime.

It is a super-2 number, since 2×1340408812 = 35933915558512322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (134040883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3845 + ... + 16818.

It is an arithmetic number, because the mean of its divisors is an integer number (18081000).

Almost surely, 2134040881 is an apocalyptic number.

It is an amenable number.

134040881 is a deficient number, since it is larger than the sum of its proper divisors (10607119).

134040881 is a wasteful number, since it uses less digits than its factorization.

134040881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21175.

The product of its (nonzero) digits is 3072, while the sum is 29.

The square root of 134040881 is about 11577.6025583883. The cubic root of 134040881 is about 511.7750285735.

The spelling of 134040881 in words is "one hundred thirty-four million, forty thousand, eight hundred eighty-one".

Divisors: 1 13 499 6487 20663 268619 10310837 134040881