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2752428 = 2237231151
BaseRepresentation
bin1010011111111110101100
312011211121210
422133332230
51201034203
6134554420
732252400
oct12377654
95154553
102752428
11160aa38
12b08a10
13754a73
14519100
15395803
hex29ffac

2752428 has 72 divisors (see below), whose sum is σ = 7762944. Its totient is φ = 756000.

The previous prime is 2752423. The next prime is 2752447. The reversal of 2752428 is 8242572.

It is a junction number, because it is equal to n+sod(n) for n = 2752395 and 2752404.

It is not an unprimeable number, because it can be changed into a prime (2752423) 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, 18153 + ... + 18303.

22752428 is an apocalyptic number.

2752428 is a gapful number since it is divisible by the number (28) 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 2752428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3881472).

2752428 is an abundant number, since it is smaller than the sum of its proper divisors (5010516).

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

2752428 is a wasteful number, since it uses less digits than its factorization.

2752428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203 (or 194 counting only the distinct ones).

The product of its digits is 8960, while the sum is 30.

The square root of 2752428 is about 1659.0443032059. The cubic root of 2752428 is about 140.1431868372.

The spelling of 2752428 in words is "two million, seven hundred fifty-two thousand, four hundred twenty-eight".

Divisors: 1 2 3 4 6 7 12 14 21 28 31 42 49 62 84 93 98 124 147 151 186 196 217 294 302 372 434 453 588 604 651 868 906 1057 1302 1519 1812 2114 2604 3038 3171 4228 4557 4681 6076 6342 7399 9114 9362 12684 14043 14798 18228 18724 22197 28086 29596 32767 44394 56172 65534 88788 98301 131068 196602 229369 393204 458738 688107 917476 1376214 2752428