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2028136 = 2311191213
BaseRepresentation
bin111101111001001101000
310211001002011
413233021220
51004400021
6111245304
723144635
oct7571150
93731064
102028136
111165850
12819834
135601a6
143ab18c
152a0de1
hex1ef268

2028136 has 32 divisors (see below), whose sum is σ = 4370400. Its totient is φ = 872640.

The previous prime is 2028121. The next prime is 2028137. The reversal of 2028136 is 6318202.

It is a super-2 number, since 2×20281362 = 8226671268992, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (2028137) 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, 1066 + ... + 2278.

It is an arithmetic number, because the mean of its divisors is an integer number (136575).

22028136 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2028136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2185200).

2028136 is an abundant number, since it is smaller than the sum of its proper divisors (2342264).

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

2028136 is a wasteful number, since it uses less digits than its factorization.

2028136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1249 (or 1245 counting only the distinct ones).

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

The square root of 2028136 is about 1424.1263988846. The cubic root of 2028136 is about 126.5801748724.

It can be divided in two parts, 202 and 8136, that added together give a palindrome (8338).

The spelling of 2028136 in words is "two million, twenty-eight thousand, one hundred thirty-six".

Divisors: 1 2 4 8 11 19 22 38 44 76 88 152 209 418 836 1213 1672 2426 4852 9704 13343 23047 26686 46094 53372 92188 106744 184376 253517 507034 1014068 2028136