Search a number
-
+
80372697 = 326790899
BaseRepresentation
bin1001100101001…
…10001111011001
312121020100121120
410302212033121
5131033411242
611550355453
71664104506
oct462461731
9177210546
1080372697
1141406219
1222abbb89
1313860c12
14a9624ad
1570c91ec
hex4ca63d9

80372697 has 4 divisors (see below), whose sum is σ = 107163600. Its totient is φ = 53581796.

The previous prime is 80372693. The next prime is 80372701. The reversal of 80372697 is 79627308.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (80372693) and next prime (80372701).

It is a cyclic number.

It is not a de Polignac number, because 80372697 - 22 = 80372693 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80372693) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13395447 + ... + 13395452.

It is an arithmetic number, because the mean of its divisors is an integer number (26790900).

Almost surely, 280372697 is an apocalyptic number.

It is an amenable number.

80372697 is a deficient number, since it is larger than the sum of its proper divisors (26790903).

80372697 is a wasteful number, since it uses less digits than its factorization.

80372697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26790902.

The product of its (nonzero) digits is 127008, while the sum is 42.

The square root of 80372697 is about 8965.0820966682. The cubic root of 80372697 is about 431.5550277200. Note that the first 3 decimals are identical.

The spelling of 80372697 in words is "eighty million, three hundred seventy-two thousand, six hundred ninety-seven".

Divisors: 1 3 26790899 80372697