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80894927 = 411973047
BaseRepresentation
bin1001101001001…
…01101111001111
312122012212222102
410310211233033
5131202114202
612005505315
72001411161
oct464455717
9178185872
1080894927
1141732613
122311223b
13139b4829
14aa5a931
15717dd02
hex4d25bcf

80894927 has 4 divisors (see below), whose sum is σ = 82868016. Its totient is φ = 78921840.

The previous prime is 80894923. The next prime is 80894939. The reversal of 80894927 is 72949808.

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 80894927 - 22 = 80894923 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 (80894921) 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, 986483 + ... + 986564.

It is an arithmetic number, because the mean of its divisors is an integer number (20717004).

Almost surely, 280894927 is an apocalyptic number.

80894927 is a deficient number, since it is larger than the sum of its proper divisors (1973089).

80894927 is a wasteful number, since it uses less digits than its factorization.

80894927 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1973088.

The product of its (nonzero) digits is 290304, while the sum is 47.

The square root of 80894927 is about 8994.1607168207. The cubic root of 80894927 is about 432.4877018789.

The spelling of 80894927 in words is "eighty million, eight hundred ninety-four thousand, nine hundred twenty-seven".

Divisors: 1 41 1973047 80894927