Search a number
-
+
2681051867 = 131910854461
BaseRepresentation
bin1001111111001101…
…1001101011011011
320220211212112202022
42133303121223123
520442322124432
61122012125055
7123303364514
oct23763315333
96824775668
102681051867
111156424a4a
12629a6678b
133395b1030
141b60dda0b
1510a590b12
hex9fcd9adb

2681051867 has 8 divisors (see below), whose sum is σ = 3039249360. Its totient is φ = 2344563360.

The previous prime is 2681051843. The next prime is 2681051887. The reversal of 2681051867 is 7681501862.

It is a happy number.

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 2681051867 - 210 = 2681050843 is a prime.

It is a super-2 number, since 2×26810518672 = 14376078227088371378, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2681051837) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5426984 + ... + 5427477.

It is an arithmetic number, because the mean of its divisors is an integer number (379906170).

Almost surely, 22681051867 is an apocalyptic number.

2681051867 is a deficient number, since it is larger than the sum of its proper divisors (358197493).

2681051867 is a wasteful number, since it uses less digits than its factorization.

2681051867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10854493.

The product of its (nonzero) digits is 161280, while the sum is 44.

The square root of 2681051867 is about 51778.8747173980. The cubic root of 2681051867 is about 1389.2116135488.

The spelling of 2681051867 in words is "two billion, six hundred eighty-one million, fifty-one thousand, eight hundred sixty-seven".

Divisors: 1 13 19 247 10854461 141107993 206234759 2681051867