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80812153 is a prime number
BaseRepresentation
bin1001101000100…
…01100001111001
312122001200102201
410310101201321
5131141442103
612004030201
72000614642
oct464214171
9178050381
1080812153
1141686404
1223092361
1313985c56
14aa386c9
15716451d
hex4d11879

80812153 has 2 divisors, whose sum is σ = 80812154. Its totient is φ = 80812152.

The previous prime is 80812103. The next prime is 80812157. The reversal of 80812153 is 35121808.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42471289 + 38340864 = 6517^2 + 6192^2 .

It is a cyclic number.

It is not a de Polignac number, because 80812153 - 221 = 78715001 is a prime.

It is not a weakly prime, because it can be changed into another prime (80812157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40406076 + 40406077.

It is an arithmetic number, because the mean of its divisors is an integer number (40406077).

Almost surely, 280812153 is an apocalyptic number.

It is an amenable number.

80812153 is a deficient number, since it is larger than the sum of its proper divisors (1).

80812153 is an equidigital number, since it uses as much as digits as its factorization.

80812153 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1920, while the sum is 28.

The square root of 80812153 is about 8989.5579980331. The cubic root of 80812153 is about 432.3401402810.

The spelling of 80812153 in words is "eighty million, eight hundred twelve thousand, one hundred fifty-three".