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26728142 = 271909153
BaseRepresentation
bin110010111110…
…1011011001110
31212021221010012
41211331123032
523320300032
62352513222
7443120420
oct145753316
955257105
1026728142
11140a6281
128b4b812
1356ca98c
14379a810
15252e6b2
hex197d6ce

26728142 has 8 divisors (see below), whose sum is σ = 45819696. Its totient is φ = 11454912.

The previous prime is 26728103. The next prime is 26728153. The reversal of 26728142 is 24182762.

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

It is a junction number, because it is equal to n+sod(n) for n = 26728099 and 26728108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 954563 + ... + 954590.

It is an arithmetic number, because the mean of its divisors is an integer number (5727462).

Almost surely, 226728142 is an apocalyptic number.

26728142 is a deficient number, since it is larger than the sum of its proper divisors (19091554).

26728142 is a wasteful number, since it uses less digits than its factorization.

26728142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1909162.

The product of its digits is 10752, while the sum is 32.

The square root of 26728142 is about 5169.9266919367. The cubic root of 26728142 is about 298.9897201195.

The spelling of 26728142 in words is "twenty-six million, seven hundred twenty-eight thousand, one hundred forty-two".

Divisors: 1 2 7 14 1909153 3818306 13364071 26728142