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16145707 = 36774391
BaseRepresentation
bin111101100101…
…110100101011
31010101021202011
4331211310223
513113130312
61334020351
7254144014
oct75456453
933337664
1016145707
119128566
1254a76b7
133463c96
14220400b
15163dda7
hexf65d2b

16145707 has 4 divisors (see below), whose sum is σ = 16153776. Its totient is φ = 16137640.

The previous prime is 16145693. The next prime is 16145711. The reversal of 16145707 is 70754161.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 70754161 = 337209953.

It is a cyclic number.

It is not a de Polignac number, because 16145707 - 215 = 16112939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16145737) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1482 + ... + 5872.

It is an arithmetic number, because the mean of its divisors is an integer number (4038444).

Almost surely, 216145707 is an apocalyptic number.

16145707 is a deficient number, since it is larger than the sum of its proper divisors (8069).

16145707 is an equidigital number, since it uses as much as digits as its factorization.

16145707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8068.

The product of its (nonzero) digits is 5880, while the sum is 31.

The square root of 16145707 is about 4018.1720968620. The cubic root of 16145707 is about 252.7468135302.

Adding to 16145707 its reverse (70754161), we get a palindrome (86899868).

The spelling of 16145707 in words is "sixteen million, one hundred forty-five thousand, seven hundred seven".

Divisors: 1 3677 4391 16145707