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80397275 = 5274331061
BaseRepresentation
bin1001100101011…
…00001111011011
312121021121022212
410302230033123
5131040203100
611551105335
71664236250
oct462541733
9177247285
1080397275
1141422732
1222b1224b
131386c16a
14a96b427
1570d1635
hex4cac3db

80397275 has 24 divisors (see below), whose sum is σ = 114305184. Its totient is φ = 54950400.

The previous prime is 80397241. The next prime is 80397277. The reversal of 80397275 is 57279308.

80397275 = 33862 + 33872 + ... + 33922.

It is not a de Polignac number, because 80397275 - 212 = 80393179 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80397277) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 75245 + ... + 76305.

It is an arithmetic number, because the mean of its divisors is an integer number (4762716).

Almost surely, 280397275 is an apocalyptic number.

80397275 is a deficient number, since it is larger than the sum of its proper divisors (33907909).

80397275 is a wasteful number, since it uses less digits than its factorization.

80397275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1511 (or 1506 counting only the distinct ones).

The product of its (nonzero) digits is 105840, while the sum is 41.

The square root of 80397275 is about 8966.4527545736. The cubic root of 80397275 is about 431.5990131316.

The spelling of 80397275 in words is "eighty million, three hundred ninety-seven thousand, two hundred seventy-five".

Divisors: 1 5 7 25 35 175 433 1061 2165 3031 5305 7427 10825 15155 26525 37135 75775 185675 459413 2297065 3215891 11485325 16079455 80397275