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80201378 = 2199201511
BaseRepresentation
bin1001100011111…
…00011010100010
312120220122121102
410301330122202
5131012421003
611542554402
71662462155
oct461743242
9176818542
1080201378
11412a9534
1222a38a02
1313800c4a
14a919c9c
157093588
hex4c7c6a2

80201378 has 8 divisors (see below), whose sum is σ = 120907200. Its totient is φ = 39898980.

The previous prime is 80201339. The next prime is 80201399. The reversal of 80201378 is 87310208.

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

It is a super-2 number, since 2×802013782 = 12864522066197768, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 80201378.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100358 + ... + 101153.

It is an arithmetic number, because the mean of its divisors is an integer number (15113400).

Almost surely, 280201378 is an apocalyptic number.

80201378 is a deficient number, since it is larger than the sum of its proper divisors (40705822).

80201378 is a wasteful number, since it uses less digits than its factorization.

80201378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201712.

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 80201378 is about 8955.5222069961. The cubic root of 80201378 is about 431.2481815228.

The spelling of 80201378 in words is "eighty million, two hundred one thousand, three hundred seventy-eight".

Divisors: 1 2 199 398 201511 403022 40100689 80201378