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28852670 = 25721153101
BaseRepresentation
bin110111000010…
…0000110111110
32000021212102102
41232010012332
524341241140
62510225102
7500146400
oct156040676
960255372
1028852670
1115317490
1297b5192
135c929b2
143b90b70
1527ede15
hex1b841be

28852670 has 96 divisors (see below), whose sum is σ = 67814496. Its totient is φ = 8736000.

The previous prime is 28852639. The next prime is 28852673. The reversal of 28852670 is 7625882.

It is a super-2 number, since 2×288526702 = 1664953132257800, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28852673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 285620 + ... + 285720.

It is an arithmetic number, because the mean of its divisors is an integer number (706401).

Almost surely, 228852670 is an apocalyptic number.

28852670 is an abundant number, since it is smaller than the sum of its proper divisors (38961826).

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

28852670 is a wasteful number, since it uses less digits than its factorization.

28852670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186 (or 179 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 38.

The square root of 28852670 is about 5371.4681419515. The cubic root of 28852670 is about 306.7105180414.

It can be divided in two parts, 2885 and 2670, that added together give a palindrome (5555).

The spelling of 28852670 in words is "twenty-eight million, eight hundred fifty-two thousand, six hundred seventy".

Divisors: 1 2 5 7 10 11 14 22 35 49 53 55 70 77 98 101 106 110 154 202 245 265 371 385 490 505 530 539 583 707 742 770 1010 1078 1111 1166 1414 1855 2222 2597 2695 2915 3535 3710 4081 4949 5194 5353 5390 5555 5830 7070 7777 8162 9898 10706 11110 12985 15554 20405 24745 25970 26765 28567 37471 38885 40810 49490 53530 54439 57134 58883 74942 77770 108878 117766 142835 187355 262297 272195 285670 294415 374710 412181 524594 544390 588830 824362 1311485 2060905 2622970 2885267 4121810 5770534 14426335 28852670