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16144061261 = 236709104623
BaseRepresentation
bin11110000100100001…
…01101001101001101
31112200002220021200212
433002100231031031
5231030334430021
611225543132205
71111031153666
oct170220551515
945602807625
1016144061261
1169349a1199
123166744065
1316a3885c93
14ad215236d
156474a085b
hex3c242d34d

16144061261 has 8 divisors (see below), whose sum is σ = 16848648960. Its totient is φ = 15439696272.

The previous prime is 16144061251. The next prime is 16144061273. The reversal of 16144061261 is 16216044161.

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-16144061261 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16144061251) 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, 101996 + ... + 206618.

It is an arithmetic number, because the mean of its divisors is an integer number (2106081120).

Almost surely, 216144061261 is an apocalyptic number.

It is an amenable number.

16144061261 is a deficient number, since it is larger than the sum of its proper divisors (704587699).

16144061261 is a wasteful number, since it uses less digits than its factorization.

16144061261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111355.

The product of its (nonzero) digits is 6912, while the sum is 32.

The spelling of 16144061261 in words is "sixteen billion, one hundred forty-four million, sixty-one thousand, two hundred sixty-one".

Divisors: 1 23 6709 104623 154307 2406329 701915707 16144061261