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16240261 = 292272467
BaseRepresentation
bin111101111100…
…111010000101
31010120002110011
4331330322011
513124142021
61340030221
7255016462
oct75747205
933502404
1016240261
119192604
125532371
13349802b
14222a669
15165bde1
hexf7ce85

16240261 has 8 divisors (see below), whose sum is σ = 16881120. Its totient is φ = 15604848.

The previous prime is 16240241. The next prime is 16240271. The reversal of 16240261 is 16204261.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16240261 - 25 = 16240229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16240241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5350 + ... + 7816.

It is an arithmetic number, because the mean of its divisors is an integer number (2110140).

Almost surely, 216240261 is an apocalyptic number.

It is an amenable number.

16240261 is a deficient number, since it is larger than the sum of its proper divisors (640859).

16240261 is a wasteful number, since it uses less digits than its factorization.

16240261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2723.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 16240261 is about 4029.9207188231. The cubic root of 16240261 is about 253.2392400253.

The spelling of 16240261 in words is "sixteen million, two hundred forty thousand, two hundred sixty-one".

Divisors: 1 29 227 2467 6583 71543 560009 16240261