Search a number
-
+
8040219 = 311243643
BaseRepresentation
bin11110101010111100011011
3120010111002220
4132222330123
54024241334
6444155123
7125224605
oct36527433
916114086
108040219
1145a1810
122838aa3
131886835
1410d4175
15a8c449
hex7aaf1b

8040219 has 8 divisors (see below), whose sum is σ = 11694912. Its totient is φ = 4872840.

The previous prime is 8040217. The next prime is 8040229. The reversal of 8040219 is 9120408.

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

It is not a de Polignac number, because 8040219 - 21 = 8040217 is a prime.

It is a super-2 number, since 2×80402192 = 129290243135922, which contains 22 as substring.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (8040217) 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, 121789 + ... + 121854.

It is an arithmetic number, because the mean of its divisors is an integer number (1461864).

Almost surely, 28040219 is an apocalyptic number.

8040219 is a deficient number, since it is larger than the sum of its proper divisors (3654693).

8040219 is a wasteful number, since it uses less digits than its factorization.

8040219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243657.

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 8040219 is about 2835.5279931611. The cubic root of 8040219 is about 200.3345982412.

The spelling of 8040219 in words is "eight million, forty thousand, two hundred nineteen".

Divisors: 1 3 11 33 243643 730929 2680073 8040219