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16129149 = 319927017
BaseRepresentation
bin111101100001…
…110001111101
31010100110000220
4331201301331
513112113044
61333411553
7254044521
oct75416175
933313026
1016129149
119117083
125499bb9
13345959a
1421dbd81
151639019
hexf61c7d

16129149 has 8 divisors (see below), whose sum is σ = 21614400. Its totient is φ = 10698336.

The previous prime is 16129129. The next prime is 16129159. The reversal of 16129149 is 94192161.

16129149 = T299 + T300 + ... + T497.

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

It is not a de Polignac number, because 16129149 - 25 = 16129117 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16129109) 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, 12912 + ... + 14105.

It is an arithmetic number, because the mean of its divisors is an integer number (2701800).

Almost surely, 216129149 is an apocalyptic number.

It is an amenable number.

16129149 is a deficient number, since it is larger than the sum of its proper divisors (5485251).

16129149 is a wasteful number, since it uses less digits than its factorization.

16129149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27219.

The product of its digits is 3888, while the sum is 33.

The square root of 16129149 is about 4016.1111787400. Note that the first 4 decimals coincide. The cubic root of 16129149 is about 252.6603836788.

The spelling of 16129149 in words is "sixteen million, one hundred twenty-nine thousand, one hundred forty-nine".

Divisors: 1 3 199 597 27017 81051 5376383 16129149