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3028740 = 22351113353
BaseRepresentation
bin1011100011011100000100
312200212122120
423203130010
51233404430
6144525540
734513101
oct13433404
95625576
103028740
1117895a0
1210208b0
13820770
1458baa8
153ec610
hex2e3704

3028740 has 96 divisors (see below), whose sum is σ = 9991296. Its totient is φ = 675840.

The previous prime is 3028721. The next prime is 3028747. The reversal of 3028740 is 478203.

It is a self number, because there is not a number n which added to its sum of digits gives 3028740.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3028747) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8404 + ... + 8756.

It is an arithmetic number, because the mean of its divisors is an integer number (104076).

Almost surely, 23028740 is an apocalyptic number.

3028740 is a gapful number since it is divisible by the number (30) 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 3028740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4995648).

3028740 is an abundant number, since it is smaller than the sum of its proper divisors (6962556).

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

3028740 is a wasteful number, since it uses less digits than its factorization.

3028740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389 (or 387 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 3028740 is about 1740.3275553757. The cubic root of 3028740 is about 144.6840524550.

The spelling of 3028740 in words is "three million, twenty-eight thousand, seven hundred forty".

Divisors: 1 2 3 4 5 6 10 11 12 13 15 20 22 26 30 33 39 44 52 55 60 65 66 78 110 130 132 143 156 165 195 220 260 286 330 353 390 429 572 660 706 715 780 858 1059 1412 1430 1716 1765 2118 2145 2860 3530 3883 4236 4290 4589 5295 7060 7766 8580 9178 10590 11649 13767 15532 18356 19415 21180 22945 23298 27534 38830 45890 46596 50479 55068 58245 68835 77660 91780 100958 116490 137670 151437 201916 232980 252395 275340 302874 504790 605748 757185 1009580 1514370 3028740