Search a number
-
+
2828970 = 232517432
BaseRepresentation
bin1010110010101010101010
312022201121200
422302222222
51211011340
6140345030
733021504
oct12625252
95281550
102828970
1116624a1
12b45176
13780861
14538d74
153ad330
hex2b2aaa

2828970 has 72 divisors (see below), whose sum is σ = 7973316. Its totient is φ = 693504.

The previous prime is 2828951. The next prime is 2828971. The reversal of 2828970 is 798282.

2828970 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2812329 + 16641 = 1677^2 + 129^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2828971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 65769 + ... + 65811.

22828970 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2828970, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3986658).

2828970 is an abundant number, since it is smaller than the sum of its proper divisors (5144346).

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

2828970 is a wasteful number, since it uses less digits than its factorization.

2828970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116 (or 70 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 2828970 is about 1681.9542205423. The cubic root of 2828970 is about 141.4304035794.

The spelling of 2828970 in words is "two million, eight hundred twenty-eight thousand, nine hundred seventy".

Divisors: 1 2 3 5 6 9 10 15 17 18 30 34 43 45 51 85 86 90 102 129 153 170 215 255 258 306 387 430 510 645 731 765 774 1290 1462 1530 1849 1935 2193 3655 3698 3870 4386 5547 6579 7310 9245 10965 11094 13158 16641 18490 21930 27735 31433 32895 33282 55470 62866 65790 83205 94299 157165 166410 188598 282897 314330 471495 565794 942990 1414485 2828970