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80836664 = 2311039161
BaseRepresentation
bin1001101000101…
…11100000111000
312122002221001112
410310113200320
5131143233124
612004335452
72001046256
oct464274070
9178087045
1080836664
11416a2867
12230a4588
131399415c
14aa435d6
15716b90e
hex4d17838

80836664 has 16 divisors (see below), whose sum is σ = 151722720. Its totient is φ = 40377280.

The previous prime is 80836597. The next prime is 80836669. The reversal of 80836664 is 46663808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80836669) 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, 4244 + ... + 13404.

It is an arithmetic number, because the mean of its divisors is an integer number (9482670).

Almost surely, 280836664 is an apocalyptic number.

It is an amenable number.

80836664 is a deficient number, since it is larger than the sum of its proper divisors (70886056).

80836664 is a wasteful number, since it uses less digits than its factorization.

80836664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10270 (or 10266 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 41.

The square root of 80836664 is about 8990.9211986314. The cubic root of 80836664 is about 432.3838466526.

The spelling of 80836664 in words is "eighty million, eight hundred thirty-six thousand, six hundred sixty-four".

Divisors: 1 2 4 8 1103 2206 4412 8824 9161 18322 36644 73288 10104583 20209166 40418332 80836664