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80207975894 = 2293136873679
BaseRepresentation
bin100101010110011000…
…1001001010111010110
321200000211110100021212
41022230301021113112
52303231220212034
6100502543141422
75536425355214
oct1125461112726
9250024410255
1080207975894
113101a347492
12136655a4872
137743252587
143c4c635cb4
1521468a12ce
hex12acc495d6

80207975894 has 8 divisors (see below), whose sum is σ = 120722585760. Its totient is φ = 39967113976.

The previous prime is 80207975867. The next prime is 80207975909. The reversal of 80207975894 is 49857970208.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68436254 + ... + 68437425.

It is an arithmetic number, because the mean of its divisors is an integer number (15090323220).

Almost surely, 280207975894 is an apocalyptic number.

80207975894 is a deficient number, since it is larger than the sum of its proper divisors (40514609866).

80207975894 is a wasteful number, since it uses less digits than its factorization.

80207975894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136873974.

The product of its (nonzero) digits is 10160640, while the sum is 59.

The spelling of 80207975894 in words is "eighty billion, two hundred seven million, nine hundred seventy-five thousand, eight hundred ninety-four".

Divisors: 1 2 293 586 136873679 273747358 40103987947 80207975894