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16380826177 = 38945499257
BaseRepresentation
bin11110100000101111…
…11001001001000001
31120021121102012002211
433100113321021001
5232021442414202
611305241542121
71116634503502
oct172027711101
946247365084
1016380826177
116a46605181
123211aa4941
131710943471
14b15784ba9
1565d16d1d7
hex3d05f9241

16380826177 has 8 divisors (see below), whose sum is σ = 16428321000. Its totient is φ = 16333359744.

The previous prime is 16380826169. The next prime is 16380826207. The reversal of 16380826177 is 77162808361.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 193098816 + 16187727361 = 13896^2 + 127231^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 16380826177 - 23 = 16380826169 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16380826177.

It is not an unprimeable number, because it can be changed into a prime (16380826277) 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, 1764933 + ... + 1774189.

It is an arithmetic number, because the mean of its divisors is an integer number (2053540125).

Almost surely, 216380826177 is an apocalyptic number.

It is an amenable number.

16380826177 is a deficient number, since it is larger than the sum of its proper divisors (47494823).

16380826177 is an equidigital number, since it uses as much as digits as its factorization.

16380826177 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14195.

The product of its (nonzero) digits is 677376, while the sum is 49.

The spelling of 16380826177 in words is "sixteen billion, three hundred eighty million, eight hundred twenty-six thousand, one hundred seventy-seven".

Divisors: 1 389 4549 9257 1769561 3600973 42110093 16380826177