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80894711 = 421719183
BaseRepresentation
bin1001101001001…
…01101011110111
312122012212200102
410310211223313
5131202112321
612005504315
72001410432
oct464455367
9178185612
1080894711
1141732437
122311209b
13139b46c1
14aa5a819
15717dc0b
hex4d25af7

80894711 has 4 divisors (see below), whose sum is σ = 80918112. Its totient is φ = 80871312.

The previous prime is 80894689. The next prime is 80894719. The reversal of 80894711 is 11749808.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 80894711 - 218 = 80632567 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 (80894719) 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, 5375 + ... + 13808.

It is an arithmetic number, because the mean of its divisors is an integer number (20229528).

Almost surely, 280894711 is an apocalyptic number.

80894711 is a deficient number, since it is larger than the sum of its proper divisors (23401).

80894711 is a wasteful number, since it uses less digits than its factorization.

80894711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23400.

The product of its (nonzero) digits is 16128, while the sum is 38.

The square root of 80894711 is about 8994.1487090219. The cubic root of 80894711 is about 432.4873169457.

The spelling of 80894711 in words is "eighty million, eight hundred ninety-four thousand, seven hundred eleven".

Divisors: 1 4217 19183 80894711