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80899992441 = 3219473099371
BaseRepresentation
bin100101101011000000…
…0111110101101111001
321201211001121102112100
41023112000332231321
52311140344224231
6101055343334013
75562530406162
oct1132600765571
9251731542470
1080899992441
1131344a33794
12138192b1309
137823727c18
143cb64d2769
1521874e81e6
hex12d603eb79

80899992441 has 12 divisors (see below), whose sum is σ = 123005836720. Its totient is φ = 51094731960.

The previous prime is 80899992413. The next prime is 80899992451. The reversal of 80899992441 is 14429999808.

It is not a de Polignac number, because 80899992441 - 235 = 46540254073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80899992401) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 236549515 + ... + 236549856.

Almost surely, 280899992441 is an apocalyptic number.

It is an amenable number.

80899992441 is a deficient number, since it is larger than the sum of its proper divisors (42105844279).

80899992441 is a wasteful number, since it uses less digits than its factorization.

80899992441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 473099396 (or 473099393 counting only the distinct ones).

The product of its (nonzero) digits is 13436928, while the sum is 63.

The spelling of 80899992441 in words is "eighty billion, eight hundred ninety-nine million, nine hundred ninety-two thousand, four hundred forty-one".

Divisors: 1 3 9 19 57 171 473099371 1419298113 4257894339 8988888049 26966664147 80899992441