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2028860 = 225611663
BaseRepresentation
bin111101111010100111100
310211002001222
413233110330
51004410420
6111252512
723150021
oct7572474
93732058
102028860
111166349
1281a138
13560612
143ab548
152a1225
hex1ef53c

2028860 has 24 divisors (see below), whose sum is σ = 4333056. Its totient is φ = 797760.

The previous prime is 2028847. The next prime is 2028863. The reversal of 2028860 is 688202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2028863) 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, 389 + ... + 2051.

It is an arithmetic number, because the mean of its divisors is an integer number (180544).

22028860 is an apocalyptic number.

2028860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2028860 is an abundant number, since it is smaller than the sum of its proper divisors (2304196).

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

2028860 is a wasteful number, since it uses less digits than its factorization.

2028860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1733 (or 1731 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 2028860 is about 1424.3805671238. The cubic root of 2028860 is about 126.5952351944.

The spelling of 2028860 in words is "two million, twenty-eight thousand, eight hundred sixty".

Divisors: 1 2 4 5 10 20 61 122 244 305 610 1220 1663 3326 6652 8315 16630 33260 101443 202886 405772 507215 1014430 2028860