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3500028 = 22327171943
BaseRepresentation
bin1101010110011111111100
320120211010200
431112133330
51344000103
6203003500
741515110
oct15263774
96524120
103500028
111a80694
121209590
1395712c
14671740
154920a3
hex3567fc

3500028 has 144 divisors (see below), whose sum is σ = 11531520. Its totient is φ = 870912.

The previous prime is 3500023. The next prime is 3500033. The reversal of 3500028 is 8200053.

It is an interprime number because it is at equal distance from previous prime (3500023) and next prime (3500033).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3500023) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 81375 + ... + 81417.

It is an arithmetic number, because the mean of its divisors is an integer number (80080).

Almost surely, 23500028 is an apocalyptic number.

3500028 is a gapful number since it is divisible by the number (38) 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 3500028, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5765760).

3500028 is an abundant number, since it is smaller than the sum of its proper divisors (8031492).

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

3500028 is a wasteful number, since it uses less digits than its factorization.

3500028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96 (or 91 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 3500028 is about 1870.8361766868. The cubic root of 3500028 is about 151.8298534712.

The spelling of 3500028 in words is "three million, five hundred thousand, twenty-eight".

Divisors: 1 2 3 4 6 7 9 12 14 17 18 19 21 28 34 36 38 42 43 51 57 63 68 76 84 86 102 114 119 126 129 133 153 171 172 204 228 238 252 258 266 301 306 323 342 357 387 399 476 516 532 602 612 646 684 714 731 774 798 817 903 969 1071 1197 1204 1292 1428 1462 1548 1596 1634 1806 1938 2142 2193 2261 2394 2451 2709 2907 2924 3268 3612 3876 4284 4386 4522 4788 4902 5117 5418 5719 5814 6579 6783 7353 8772 9044 9804 10234 10836 11438 11628 13158 13566 13889 14706 15351 17157 20349 20468 22876 26316 27132 27778 29412 30702 34314 40698 41667 46053 51471 55556 61404 68628 81396 83334 92106 97223 102942 125001 166668 184212 194446 205884 250002 291669 388892 500004 583338 875007 1166676 1750014 3500028