Search a number
-
+
80479655131 is a prime number
BaseRepresentation
bin100101011110011110…
…1100001010011011011
321200201202200002010211
41022330331201103123
52304310242431011
6100545530151551
75546234532031
oct1127475412333
9250652602124
1080479655131
1131149738087
12137205825b7
137787615815
143c76756551
152160668b21
hex12bcf614db

80479655131 has 2 divisors, whose sum is σ = 80479655132. Its totient is φ = 80479655130.

The previous prime is 80479655129. The next prime is 80479655153. The reversal of 80479655131 is 13155697408.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 80479655131 - 21 = 80479655129 is a prime.

It is a super-2 number, since 2×804796551312 (a number of 23 digits) contains 22 as substring.

Together with 80479655129, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (80479655101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40239827565 + 40239827566.

It is an arithmetic number, because the mean of its divisors is an integer number (40239827566).

Almost surely, 280479655131 is an apocalyptic number.

80479655131 is a deficient number, since it is larger than the sum of its proper divisors (1).

80479655131 is an equidigital number, since it uses as much as digits as its factorization.

80479655131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 907200, while the sum is 49.

The spelling of 80479655131 in words is "eighty billion, four hundred seventy-nine million, six hundred fifty-five thousand, one hundred thirty-one".