Search a number
-
+
80396859 = 3174138449
BaseRepresentation
bin1001100101011…
…00001000111011
312121021120202110
410302230020323
5131040144414
611551103403
71664235114
oct462541073
9177246673
1080396859
1141422394
1222b11b63
131386bc0a
14a96b20b
1570d1459
hex4cac23b

80396859 has 16 divisors (see below), whose sum is σ = 116272800. Its totient is φ = 49213440.

The previous prime is 80396843. The next prime is 80396873. The reversal of 80396859 is 95869308.

It is not a de Polignac number, because 80396859 - 24 = 80396843 is a prime.

It is a super-3 number, since 3×803968593 (a number of 25 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (80396839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17134 + ... + 21315.

It is an arithmetic number, because the mean of its divisors is an integer number (7267050).

Almost surely, 280396859 is an apocalyptic number.

80396859 is a deficient number, since it is larger than the sum of its proper divisors (35875941).

80396859 is a wasteful number, since it uses less digits than its factorization.

80396859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38510.

The product of its (nonzero) digits is 466560, while the sum is 48.

The square root of 80396859 is about 8966.4295569641. The cubic root of 80396859 is about 431.5982687221.

It can be divided in two parts, 803 and 96859, that multiplied together give a palindrome (77777777).

The spelling of 80396859 in words is "eighty million, three hundred ninety-six thousand, eight hundred fifty-nine".

Divisors: 1 3 17 41 51 123 697 2091 38449 115347 653633 1576409 1960899 4729227 26798953 80396859