Search a number
-
+
7968438 = 232442691
BaseRepresentation
bin11110011001011010110110
3112222211122100
4132121122312
54014442223
6442442530
7124505412
oct36313266
915884570
107968438
114552895
122803446
13185cc6a
1410b5d42
15a76043
hex7996b6

7968438 has 12 divisors (see below), whose sum is σ = 17264988. Its totient is φ = 2656140.

The previous prime is 7968413. The next prime is 7968449. The reversal of 7968438 is 8348697.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 7968393 and 7968402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 221328 + ... + 221363.

It is an arithmetic number, because the mean of its divisors is an integer number (1438749).

Almost surely, 27968438 is an apocalyptic number.

7968438 is an abundant number, since it is smaller than the sum of its proper divisors (9296550).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7968438 is a wasteful number, since it uses less digits than its factorization.

7968438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442699 (or 442696 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 7968438 is about 2822.8421847493. The cubic root of 7968438 is about 199.7366366844.

The spelling of 7968438 in words is "seven million, nine hundred sixty-eight thousand, four hundred thirty-eight".

Divisors: 1 2 3 6 9 18 442691 885382 1328073 2656146 3984219 7968438