Search a number
8012019 = 32670673
BaseRepresentation
bin11110100100000011110011
3120002001102110
4132210003303
54022341034
6443420403
7125046441
oct36440363
916061373
108012019
114582604
122824703
131876a52
1410c7b91
15a83de9
hex7a40f3

8012019 has 4 divisors (see below), whose sum is σ = 10682696. Its totient is φ = 5341344.

The previous prime is 8012003. The next prime is 8012021. The reversal of 8012019 is 9102108.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 8012019 - 24 = 8012003 is a prime.

It is a super-3 number, since 3×80120193 (a number of 22 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8011986 and 8012004.

It is not an unprimeable number, because it can be changed into a prime (8012029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1335334 + ... + 1335339.

It is an arithmetic number, because the mean of its divisors is an integer number (2670674).

Almost surely, 28012019 is an apocalyptic number.

8012019 is a deficient number, since it is larger than the sum of its proper divisors (2670677).

8012019 is a wasteful number, since it uses less digits than its factorization.

8012019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2670676.

The product of its (nonzero) digits is 144, while the sum is 21.

The square root of 8012019 is about 2830.5510064297. The cubic root of 8012019 is about 200.1001082167.

The spelling of 8012019 in words is "eight million, twelve thousand, nineteen".

Divisors: 1 3 2670673 8012019