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80416883721 = 31491283140221
BaseRepresentation
bin100101011100100111…
…0000100010000001001
321200120101112221221210
41022321032010100021
52304143210234341
6100535404523333
75544543143016
oct1127116042011
9250511487853
1080416883721
1131117263a89
1213703550549
137777608285
143c6c29670d
152159db9c16
hex12b9384409

80416883721 has 16 divisors (see below), whose sum is σ = 108027028800. Its totient is φ = 53209563840.

The previous prime is 80416883719. The next prime is 80416883749. The reversal of 80416883721 is 12738861408.

It is not a de Polignac number, because 80416883721 - 21 = 80416883719 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (80416887721) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 503391 + ... + 643611.

It is an arithmetic number, because the mean of its divisors is an integer number (6751689300).

Almost surely, 280416883721 is an apocalyptic number.

It is an amenable number.

80416883721 is a deficient number, since it is larger than the sum of its proper divisors (27610145079).

80416883721 is a wasteful number, since it uses less digits than its factorization.

80416883721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141656.

The product of its (nonzero) digits is 516096, while the sum is 48.

The spelling of 80416883721 in words is "eighty billion, four hundred sixteen million, eight hundred eighty-three thousand, seven hundred twenty-one".

Divisors: 1 3 149 447 1283 3849 140221 191167 420663 573501 20892929 62678787 179903543 539710629 26805627907 80416883721