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80130241 = 281285161
BaseRepresentation
bin1001100011010…
…11000011000001
312120210001000201
410301223003001
5131003131431
611541245201
71662044602
oct461530301
9176701021
1080130241
1141260044
1222a03801
13137a7759
14a8dbda9
15707c461
hex4c6b0c1

80130241 has 4 divisors (see below), whose sum is σ = 80415684. Its totient is φ = 79844800.

The previous prime is 80130187. The next prime is 80130251. The reversal of 80130241 is 14203108.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 40704400 + 39425841 = 6380^2 + 6279^2 .

It is a cyclic number.

It is not a de Polignac number, because 80130241 - 211 = 80128193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80130251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 142300 + ... + 142861.

It is an arithmetic number, because the mean of its divisors is an integer number (20103921).

Almost surely, 280130241 is an apocalyptic number.

It is an amenable number.

80130241 is a deficient number, since it is larger than the sum of its proper divisors (285443).

80130241 is a wasteful number, since it uses less digits than its factorization.

80130241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285442.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 80130241 is about 8951.5496423804. The cubic root of 80130241 is about 431.1206410021.

Adding to 80130241 its reverse (14203108), we get a palindrome (94333349).

It can be divided in two parts, 80 and 130241, that added together give a 4-th power (130321 = 194).

The spelling of 80130241 in words is "eighty million, one hundred thirty thousand, two hundred forty-one".

Divisors: 1 281 285161 80130241