Search a number
-
+
80223765 = 3517314603
BaseRepresentation
bin1001100100000…
…01111000010101
312120221210022120
410302001320111
5131014130030
611543250153
71662614346
oct462017025
9176853276
1080223765
1141314336
1222a49959
131380b1ab
14a9240cd
15709a010
hex4c81e15

80223765 has 16 divisors (see below), whose sum is σ = 135908928. Its totient is φ = 40269056.

The previous prime is 80223749. The next prime is 80223779. The reversal of 80223765 is 56732208.

It is not a de Polignac number, because 80223765 - 24 = 80223749 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 157047 + ... + 157556.

It is an arithmetic number, because the mean of its divisors is an integer number (8494308).

Almost surely, 280223765 is an apocalyptic number.

80223765 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

80223765 is a deficient number, since it is larger than the sum of its proper divisors (55685163).

80223765 is a wasteful number, since it uses less digits than its factorization.

80223765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314628.

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 80223765 is about 8956.7720189809. The cubic root of 80223765 is about 431.2883032561.

The spelling of 80223765 in words is "eighty million, two hundred twenty-three thousand, seven hundred sixty-five".

Divisors: 1 3 5 15 17 51 85 255 314603 943809 1573015 4719045 5348251 16044753 26741255 80223765