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16132705 = 53226541
BaseRepresentation
bin111101100010…
…101001100001
31010100121220121
4331202221201
513112221310
61333440241
7254061061
oct75425141
933317817
1016132705
119119816
1254a0081
13345b0a4
1421dd3a1
15163a0da
hexf62a61

16132705 has 4 divisors (see below), whose sum is σ = 19359252. Its totient is φ = 12906160.

The previous prime is 16132693. The next prime is 16132717. The reversal of 16132705 is 50723161.

16132705 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50723161 = 311636231.

It is an interprime number because it is at equal distance from previous prime (16132693) and next prime (16132717).

It can be written as a sum of positive squares in 2 ways, for example, as 1934881 + 14197824 = 1391^2 + 3768^2 .

It is not a de Polignac number, because 16132705 - 213 = 16124513 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 16132705.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1613266 + ... + 1613275.

It is an arithmetic number, because the mean of its divisors is an integer number (4839813).

Almost surely, 216132705 is an apocalyptic number.

It is an amenable number.

16132705 is a deficient number, since it is larger than the sum of its proper divisors (3226547).

16132705 is an equidigital number, since it uses as much as digits as its factorization.

16132705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3226546.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 16132705 is about 4016.5538711687. The cubic root of 16132705 is about 252.6789503600.

Adding to 16132705 its reverse (50723161), we get a palindrome (66855866).

The spelling of 16132705 in words is "sixteen million, one hundred thirty-two thousand, seven hundred five".

Divisors: 1 5 3226541 16132705