Search a number
-
+
4012869 = 37191089
BaseRepresentation
bin1111010011101101000101
321112212121210
433103231011
52011402434
6222002033
746052220
oct17235505
97485553
104012869
1122a0a23
121416319
13aa66a3
147665b7
15543ee9
hex3d3b45

4012869 has 8 divisors (see below), whose sum is σ = 6114880. Its totient is φ = 2293056.

The previous prime is 4012861. The next prime is 4012871. The reversal of 4012869 is 9682104.

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

It is not a de Polignac number, because 4012869 - 23 = 4012861 is a prime.

It is a super-2 number, since 2×40128692 = 32206235222322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4012861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95524 + ... + 95565.

It is an arithmetic number, because the mean of its divisors is an integer number (764360).

Almost surely, 24012869 is an apocalyptic number.

It is an amenable number.

4012869 is a deficient number, since it is larger than the sum of its proper divisors (2102011).

4012869 is a wasteful number, since it uses less digits than its factorization.

4012869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191099.

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 4012869 is about 2003.2146664799. The cubic root of 4012869 is about 158.9101584935.

The spelling of 4012869 in words is "four million, twelve thousand, eight hundred sixty-nine".

Divisors: 1 3 7 21 191089 573267 1337623 4012869