Search a number
-
+
7980337 = 10377479
BaseRepresentation
bin11110011100010100110001
3120000102222001
4132130110301
54020332322
6443014001
7124555201
oct36342461
916012861
107980337
114560822
12280a301
1318654c1
1410ba401
15a79827
hex79c531

7980337 has 4 divisors (see below), whose sum is σ = 8057920. Its totient is φ = 7902756.

The previous prime is 7980331. The next prime is 7980341. The reversal of 7980337 is 7330897.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7330897 = 71047271.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-7980337 is a prime.

It is an Ulam number.

It is a d-powerful number, because it can be written as 76 + 93 + 87 + 0 + 3 + 3 + 78 .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7980296 and 7980305.

It is not an unprimeable number, because it can be changed into a prime (7980331) 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, 38637 + ... + 38842.

It is an arithmetic number, because the mean of its divisors is an integer number (2014480).

Almost surely, 27980337 is an apocalyptic number.

It is an amenable number.

7980337 is a deficient number, since it is larger than the sum of its proper divisors (77583).

7980337 is a wasteful number, since it uses less digits than its factorization.

7980337 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77582.

The product of its (nonzero) digits is 31752, while the sum is 37.

The square root of 7980337 is about 2824.9490260888. The cubic root of 7980337 is about 199.8360072353.

The spelling of 7980337 in words is "seven million, nine hundred eighty thousand, three hundred thirty-seven".

Divisors: 1 103 77479 7980337