Search a number
-
+
2851381141 = 7479850397
BaseRepresentation
bin1010100111110100…
…1001111110010101
321100201101011120221
42221331021332111
521314423144031
61150534554341
7130442224360
oct25175117625
97321334527
102851381141
111233591944
12676b089b1
1336597a19b
141d099b0d7
1511a4d8a11
hexa9f49f95

2851381141 has 8 divisors (see below), whose sum is σ = 3265528320. Its totient is φ = 2438935728.

The previous prime is 2851381111. The next prime is 2851381163. The reversal of 2851381141 is 1411831582.

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 2851381141 - 217 = 2851250069 is a prime.

It is a super-2 number, since 2×28513811412 = 16260748822500923762, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2851381097 and 2851381106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2851381111) 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 7 ways as a sum of consecutive naturals, for example, 421846 + ... + 428551.

It is an arithmetic number, because the mean of its divisors is an integer number (408191040).

Almost surely, 22851381141 is an apocalyptic number.

It is an amenable number.

2851381141 is a deficient number, since it is larger than the sum of its proper divisors (414147179).

2851381141 is an equidigital number, since it uses as much as digits as its factorization.

2851381141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 850883.

The product of its digits is 7680, while the sum is 34.

The square root of 2851381141 is about 53398.3252640006. The cubic root of 2851381141 is about 1418.0289291220.

The spelling of 2851381141 in words is "two billion, eight hundred fifty-one million, three hundred eighty-one thousand, one hundred forty-one".

Divisors: 1 7 479 3353 850397 5952779 407340163 2851381141