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16149029 = 131242233
BaseRepresentation
bin111101100110…
…101000100101
31010101110022012
4331212220211
513113232104
61334044005
7254156501
oct75465045
933343265
1016149029
119130006
1254a9605
133465650
142205301
15163ed6e
hexf66a25

16149029 has 4 divisors (see below), whose sum is σ = 17391276. Its totient is φ = 14906784.

The previous prime is 16149017. The next prime is 16149041. The reversal of 16149029 is 92094161.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (16149017) and next prime (16149041).

It can be written as a sum of positive squares in 2 ways, for example, as 4418404 + 11730625 = 2102^2 + 3425^2 .

It is a cyclic number.

It is not a de Polignac number, because 16149029 - 28 = 16148773 is a prime.

It is a super-2 number, since 2×161490292 = 521582275285682, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16148986 and 16149004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16149229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 621104 + ... + 621129.

It is an arithmetic number, because the mean of its divisors is an integer number (4347819).

Almost surely, 216149029 is an apocalyptic number.

It is an amenable number.

16149029 is a deficient number, since it is larger than the sum of its proper divisors (1242247).

16149029 is a wasteful number, since it uses less digits than its factorization.

16149029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1242246.

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 16149029 is about 4018.5854476420. The cubic root of 16149029 is about 252.7641466689.

The spelling of 16149029 in words is "sixteen million, one hundred forty-nine thousand, twenty-nine".

Divisors: 1 13 1242233 16149029