Search a number
-
+
28146060 = 22325271577
BaseRepresentation
bin110101101011…
…1100110001100
31221221222010200
41223113212030
524201133220
62443133500
7461144325
oct153274614
957858120
1028146060
1114984608
129514290
135aa6197
143a4944c
15270e890
hex1ad798c

28146060 has 72 divisors (see below), whose sum is σ = 85839936. Its totient is φ = 7464960.

The previous prime is 28146031. The next prime is 28146061. The reversal of 28146060 is 6064182.

It is not an unprimeable number, because it can be changed into a prime (28146061) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 48492 + ... + 49068.

Almost surely, 228146060 is an apocalyptic number.

28146060 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28146060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42919968).

28146060 is an abundant number, since it is smaller than the sum of its proper divisors (57693876).

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

28146060 is a wasteful number, since it uses less digits than its factorization.

28146060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 863 (or 858 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 28146060 is about 5305.2860431837. The cubic root of 28146060 is about 304.1859867213.

The spelling of 28146060 in words is "twenty-eight million, one hundred forty-six thousand, sixty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 90 180 271 542 577 813 1084 1154 1355 1626 1731 2308 2439 2710 2885 3252 3462 4065 4878 5193 5420 5770 6924 8130 8655 9756 10386 11540 12195 16260 17310 20772 24390 25965 34620 48780 51930 103860 156367 312734 469101 625468 781835 938202 1407303 1563670 1876404 2345505 2814606 3127340 4691010 5629212 7036515 9382020 14073030 28146060