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16012425 = 35211131493
BaseRepresentation
bin111101000101…
…010010001001
31010010111220210
4331011102021
513044344200
61331111333
7253050312
oct75052211
933114823
1016012425
119047410
125442549
133418410
1421ab609
151614650
hexf45489

16012425 has 48 divisors (see below), whose sum is σ = 31123008. Its totient is φ = 7161600.

The previous prime is 16012391. The next prime is 16012429. The reversal of 16012425 is 52421061.

It is not a de Polignac number, because 16012425 - 28 = 16012169 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (16012429) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 9979 + ... + 11471.

It is an arithmetic number, because the mean of its divisors is an integer number (648396).

Almost surely, 216012425 is an apocalyptic number.

16012425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16012425 is a deficient number, since it is larger than the sum of its proper divisors (15110583).

16012425 is a wasteful number, since it uses less digits than its factorization.

16012425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1530 (or 1525 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 16012425 is about 4001.5528235924. The cubic root of 16012425 is about 252.0494202646.

Adding to 16012425 its reverse (52421061), we get a palindrome (68433486).

The spelling of 16012425 in words is "sixteen million, twelve thousand, four hundred twenty-five".

Divisors: 1 3 5 11 13 15 25 33 39 55 65 75 143 165 195 275 325 429 715 825 975 1493 2145 3575 4479 7465 10725 16423 19409 22395 37325 49269 58227 82115 97045 111975 213499 246345 291135 410575 485225 640497 1067495 1231725 1455675 3202485 5337475 16012425