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16492428 = 2232458123
BaseRepresentation
bin111110111010…
…011110001100
31011000220100200
4332322132030
513210224203
61345253500
7260116611
oct76723614
934026320
1016492428
119345007
125634290
133555a44
142294508
1516ab9a3
hexfba78c

16492428 has 18 divisors (see below), whose sum is σ = 41689284. Its totient is φ = 5497464.

The previous prime is 16492423. The next prime is 16492451. The reversal of 16492428 is 82429461.

16492428 is a `hidden beast` number, since 1 + 649 + 2 + 4 + 2 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 458123 = 16492428 / (1 + 6 + 4 + 9 + 2 + 4 + 2 + 8).

It is a junction number, because it is equal to n+sod(n) for n = 16492392 and 16492401.

It is not an unprimeable number, because it can be changed into a prime (16492423) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 229026 + ... + 229097.

Almost surely, 216492428 is an apocalyptic number.

16492428 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

16492428 is an abundant number, since it is smaller than the sum of its proper divisors (25196856).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16492428 is a wasteful number, since it uses less digits than its factorization.

16492428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 458133 (or 458128 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 16492428 is about 4061.0870465923. The cubic root of 16492428 is about 254.5432191671.

The spelling of 16492428 in words is "sixteen million, four hundred ninety-two thousand, four hundred twenty-eight".

Divisors: 1 2 3 4 6 9 12 18 36 458123 916246 1374369 1832492 2748738 4123107 5497476 8246214 16492428