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80130655 = 5111456921
BaseRepresentation
bin1001100011010…
…11001001011111
312120210001121001
410301223021133
5131003140110
611541251131
71662046033
oct461531137
9176701531
1080130655
1141260390
1222a03aa7
13137a79b7
14a8dc1c3
15707c63a
hex4c6b25f

80130655 has 8 divisors (see below), whose sum is σ = 104898384. Its totient is φ = 58276800.

The previous prime is 80130653. The next prime is 80130679. The reversal of 80130655 is 55603108.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 80130655 - 21 = 80130653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80130653) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 728406 + ... + 728515.

It is an arithmetic number, because the mean of its divisors is an integer number (13112298).

Almost surely, 280130655 is an apocalyptic number.

80130655 is a deficient number, since it is larger than the sum of its proper divisors (24767729).

80130655 is a wasteful number, since it uses less digits than its factorization.

80130655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1456937.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 80130655 is about 8951.5727668382. The cubic root of 80130655 is about 431.1213834752.

The spelling of 80130655 in words is "eighty million, one hundred thirty thousand, six hundred fifty-five".

Divisors: 1 5 11 55 1456921 7284605 16026131 80130655