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16145313 = 3137163241
BaseRepresentation
bin111101100101…
…101110100001
31010101021012120
4331211232201
513113122223
61334014453
7254142612
oct75455641
933337176
1016145313
119128238
1254a7429
133463a52
142203c09
15163dbe3
hexf65ba1

16145313 has 16 divisors (see below), whose sum is σ = 21907776. Its totient is φ = 10575360.

The previous prime is 16145303. The next prime is 16145317. The reversal of 16145313 is 31354161.

It is not a de Polignac number, because 16145313 - 221 = 14048161 is a prime.

It is a super-2 number, since 2×161453132 = 521342263735938, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16145317) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66873 + ... + 67113.

It is an arithmetic number, because the mean of its divisors is an integer number (1369236).

Almost surely, 216145313 is an apocalyptic number.

It is an amenable number.

16145313 is a deficient number, since it is larger than the sum of its proper divisors (5762463).

16145313 is a wasteful number, since it uses less digits than its factorization.

16145313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 544.

The product of its digits is 1080, while the sum is 24.

The square root of 16145313 is about 4018.1230692949. The cubic root of 16145313 is about 252.7447576059.

Adding to 16145313 its reverse (31354161), we get a palindrome (47499474).

The spelling of 16145313 in words is "sixteen million, one hundred forty-five thousand, three hundred thirteen".

Divisors: 1 3 137 163 241 411 489 723 22331 33017 39283 66993 99051 117849 5381771 16145313