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16880445149 = 61811341219
BaseRepresentation
bin11111011100010011…
…10010011011011101
31121120102112110111012
433232021302123131
5234032343221044
611431010305005
71135212262541
oct175611623335
947512473435
1016880445149
117182631317
123331288165
1317902c3ca9
14b61c7ba21
1568be5d59e
hex3ee2726dd

16880445149 has 8 divisors (see below), whose sum is σ = 17178379680. Its totient is φ = 16583194800.

The previous prime is 16880445143. The next prime is 16880445191. The reversal of 16880445149 is 94154408861.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-16880445149 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16880445097 and 16880445106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16880445143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121139 + ... + 220080.

It is an arithmetic number, because the mean of its divisors is an integer number (2147297460).

Almost surely, 216880445149 is an apocalyptic number.

It is an amenable number.

16880445149 is a deficient number, since it is larger than the sum of its proper divisors (297934531).

16880445149 is an equidigital number, since it uses as much as digits as its factorization.

16880445149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342091.

The product of its (nonzero) digits is 1105920, while the sum is 50.

The spelling of 16880445149 in words is "sixteen billion, eight hundred eighty million, four hundred forty-five thousand, one hundred forty-nine".

Divisors: 1 61 811 49471 341219 20814359 276728609 16880445149