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80161497 = 3213685141
BaseRepresentation
bin1001100011100…
…10101011011001
312120211121220100
410301302223121
5131010131442
611542050013
71662234663
oct461625331
9176747810
1080161497
1141281579
1222a19909
13137b8a50
14a909533
15708684c
hex4c72ad9

80161497 has 12 divisors (see below), whose sum is σ = 124695844. Its totient is φ = 49330080.

The previous prime is 80161451. The next prime is 80161561. The reversal of 80161497 is 79416108.

80161497 is a `hidden beast` number, since 8 + 0 + 161 + 497 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 4888521 + 75272976 = 2211^2 + 8676^2 .

It is not a de Polignac number, because 80161497 - 210 = 80160473 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80161427) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 342454 + ... + 342687.

Almost surely, 280161497 is an apocalyptic number.

It is an amenable number.

80161497 is a deficient number, since it is larger than the sum of its proper divisors (44534347).

80161497 is a wasteful number, since it uses less digits than its factorization.

80161497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 685160 (or 685157 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 80161497 is about 8953.2953151340. The cubic root of 80161497 is about 431.1766887352.

The spelling of 80161497 in words is "eighty million, one hundred sixty-one thousand, four hundred ninety-seven".

Divisors: 1 3 9 13 39 117 685141 2055423 6166269 8906833 26720499 80161497