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16091425 = 52791951
BaseRepresentation
bin111101011000…
…100100100001
31010021112021201
4331120210201
513104411200
61332521201
7253526530
oct75304441
933245251
1016091425
1190a07a9
125480201
13344536c
1421cc317
15162cc6a
hexf58921

16091425 has 12 divisors (see below), whose sum is σ = 22804096. Its totient is φ = 11034000.

The previous prime is 16091407. The next prime is 16091441. The reversal of 16091425 is 52419061.

It is not a de Polignac number, because 16091425 - 215 = 16058657 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16091393 and 16091402.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45801 + ... + 46150.

Almost surely, 216091425 is an apocalyptic number.

It is an amenable number.

16091425 is a deficient number, since it is larger than the sum of its proper divisors (6712671).

16091425 is an equidigital number, since it uses as much as digits as its factorization.

16091425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91968 (or 91963 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 16091425 is about 4011.4118462207. The cubic root of 16091425 is about 252.4632498879.

The spelling of 16091425 in words is "sixteen million, ninety-one thousand, four hundred twenty-five".

Divisors: 1 5 7 25 35 175 91951 459755 643657 2298775 3218285 16091425