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7980031 is a prime number
BaseRepresentation
bin11110011100001111111111
3120000102112201
4132130033333
54020330111
6443012331
7124554253
oct36341777
916012481
107980031
114560574
12280a0a7
131865317
1410ba263
15a796c1
hex79c3ff

7980031 has 2 divisors, whose sum is σ = 7980032. Its totient is φ = 7980030.

The previous prime is 7980029. The next prime is 7980041. The reversal of 7980031 is 1300897.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7980031 - 21 = 7980029 is a prime.

It is a super-2 number, since 2×79800312 = 127361789521922, which contains 22 as substring.

Together with 7980029, it forms a pair of twin primes.

It is a Chen prime.

It is a zygodrome in base 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7980041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3990015 + 3990016.

It is an arithmetic number, because the mean of its divisors is an integer number (3990016).

Almost surely, 27980031 is an apocalyptic number.

7980031 is a deficient number, since it is larger than the sum of its proper divisors (1).

7980031 is an equidigital number, since it uses as much as digits as its factorization.

7980031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 7980031 is about 2824.8948653003. The cubic root of 7980031 is about 199.8334530157.

The spelling of 7980031 in words is "seven million, nine hundred eighty thousand, thirty-one".