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80897207 = 376732633
BaseRepresentation
bin1001101001001…
…10010010110111
312122020000002212
410310212102313
5131202202312
612005524035
72001420626
oct464462267
9178200085
1080897207
11417342a6
122311361b
13139b5891
14aa5b6bd
15717e822
hex4d264b7

80897207 has 8 divisors (see below), whose sum is σ = 84326256. Its totient is φ = 77533632.

The previous prime is 80897183. The next prime is 80897209. The reversal of 80897207 is 70279808.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 80897207 - 222 = 76702903 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80897209) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13838 + ... + 18795.

It is an arithmetic number, because the mean of its divisors is an integer number (10540782).

Almost surely, 280897207 is an apocalyptic number.

80897207 is a deficient number, since it is larger than the sum of its proper divisors (3429049).

80897207 is a wasteful number, since it uses less digits than its factorization.

80897207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32737.

The product of its (nonzero) digits is 56448, while the sum is 41.

The square root of 80897207 is about 8994.2874648301. The cubic root of 80897207 is about 432.4917650208.

The spelling of 80897207 in words is "eighty million, eight hundred ninety-seven thousand, two hundred seven".

Divisors: 1 37 67 2479 32633 1207421 2186411 80897207