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80900355 = 355393357
BaseRepresentation
bin1001101001001…
…11000100000011
312122020011102110
410310213010003
5131202302410
612005550403
72001433044
oct464470403
9178204373
1080900355
11417366a8
1223115403
13139b7143
14aa5c8cb
157180720
hex4d27103

80900355 has 8 divisors (see below), whose sum is σ = 129440592. Its totient is φ = 43146848.

The previous prime is 80900327. The next prime is 80900357. The reversal of 80900355 is 55300908.

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 80900355 - 218 = 80638211 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80900357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2696664 + ... + 2696693.

It is an arithmetic number, because the mean of its divisors is an integer number (16180074).

Almost surely, 280900355 is an apocalyptic number.

80900355 is a deficient number, since it is larger than the sum of its proper divisors (48540237).

80900355 is a wasteful number, since it uses less digits than its factorization.

80900355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5393365.

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 80900355 is about 8994.4624630936. The cubic root of 80900355 is about 432.4973748824.

The spelling of 80900355 in words is "eighty million, nine hundred thousand, three hundred fifty-five".

Divisors: 1 3 5 15 5393357 16180071 26966785 80900355