Search a number
-
+
80361061 = 112664141
BaseRepresentation
bin1001100101000…
…11011001100101
312121012202122121
410302203121211
5131033023221
611550225541
71664025544
oct462433145
9177182577
1080361061
11413a8500
1222ab52b1
1313858831
14a95c15b
1570c5a41
hex4ca3665

80361061 has 6 divisors (see below), whose sum is σ = 88330886. Its totient is φ = 73055400.

The previous prime is 80361053. The next prime is 80361067. The reversal of 80361061 is 16016308.

It can be written as a sum of positive squares in only one way, i.e., 44289025 + 36072036 = 6655^2 + 6006^2 .

It is not a de Polignac number, because 80361061 - 23 = 80361053 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 (80361067) 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 5 ways as a sum of consecutive naturals, for example, 331950 + ... + 332191.

Almost surely, 280361061 is an apocalyptic number.

It is an amenable number.

80361061 is a deficient number, since it is larger than the sum of its proper divisors (7969825).

80361061 is a wasteful number, since it uses less digits than its factorization.

80361061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 664163 (or 664152 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 80361061 is about 8964.4331109111. The cubic root of 80361061 is about 431.5342005120.

Adding to 80361061 its reverse (16016308), we get a palindrome (96377369).

The spelling of 80361061 in words is "eighty million, three hundred sixty-one thousand, sixty-one".

Divisors: 1 11 121 664141 7305551 80361061