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80291398 = 2113649609
BaseRepresentation
bin1001100100100…
…10011001000110
312121002020002111
410302102121012
5131023311043
611544531234
71663315465
oct462223106
9177066074
1080291398
1141360130
1222a80b1a
1313832c05
14a9409dc
1570b009d
hex4c92646

80291398 has 8 divisors (see below), whose sum is σ = 131385960. Its totient is φ = 36496080.

The previous prime is 80291383. The next prime is 80291437. The reversal of 80291398 is 89319208.

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

It is a self number, because there is not a number n which added to its sum of digits gives 80291398.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1824783 + ... + 1824826.

It is an arithmetic number, because the mean of its divisors is an integer number (16423245).

Almost surely, 280291398 is an apocalyptic number.

80291398 is a deficient number, since it is larger than the sum of its proper divisors (51094562).

80291398 is a wasteful number, since it uses less digits than its factorization.

80291398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3649622.

The product of its (nonzero) digits is 31104, while the sum is 40.

The square root of 80291398 is about 8960.5467467114. The cubic root of 80291398 is about 431.4094690501.

The spelling of 80291398 in words is "eighty million, two hundred ninety-one thousand, three hundred ninety-eight".

Divisors: 1 2 11 22 3649609 7299218 40145699 80291398