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16145427 = 317316577
BaseRepresentation
bin111101100101…
…110000010011
31010101021100210
4331211300103
513113123202
61334015203
7254143134
oct75456023
933337323
1016145427
119128331
1254a7503
133463b0c
142203c8b
15163dc6c
hexf65c13

16145427 has 8 divisors (see below), whose sum is σ = 22793616. Its totient is φ = 10130432.

The previous prime is 16145413. The next prime is 16145449. The reversal of 16145427 is 72454161.

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 16145427 - 24 = 16145411 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16145394 and 16145403.

It is not an unprimeable number, because it can be changed into a prime (16145477) 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 7 ways as a sum of consecutive naturals, for example, 158238 + ... + 158339.

It is an arithmetic number, because the mean of its divisors is an integer number (2849202).

Almost surely, 216145427 is an apocalyptic number.

16145427 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

16145427 is a deficient number, since it is larger than the sum of its proper divisors (6648189).

16145427 is a wasteful number, since it uses less digits than its factorization.

16145427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316597.

The product of its digits is 6720, while the sum is 30.

The square root of 16145427 is about 4018.1372549976. The cubic root of 16145427 is about 252.7453524706.

Adding to 16145427 its reverse (72454161), we get a palindrome (88599588).

The spelling of 16145427 in words is "sixteen million, one hundred forty-five thousand, four hundred twenty-seven".

Divisors: 1 3 17 51 316577 949731 5381809 16145427