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2688023 = 131712163
BaseRepresentation
bin1010010000010000010111
312001120021102
422100100113
51142004043
6133340315
731563542
oct12202027
95046242
102688023
111576608
12a9769b
13731660
144dd859
153816b8
hex290417

2688023 has 8 divisors (see below), whose sum is σ = 3065328. Its totient is φ = 2335104.

The previous prime is 2688019. The next prime is 2688053. The reversal of 2688023 is 3208862.

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 2688023 - 22 = 2688019 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 (2688053) 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, 5861 + ... + 6302.

It is an arithmetic number, because the mean of its divisors is an integer number (383166).

22688023 is an apocalyptic number.

2688023 is a deficient number, since it is larger than the sum of its proper divisors (377305).

2688023 is a wasteful number, since it uses less digits than its factorization.

2688023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12193.

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 2688023 is about 1639.5191368203. The cubic root of 2688023 is about 139.0414623648.

The spelling of 2688023 in words is "two million, six hundred eighty-eight thousand, twenty-three".

Divisors: 1 13 17 221 12163 158119 206771 2688023