Search a number
-
+
2115285700 = 2252112592963
BaseRepresentation
bin111111000010100…
…1011001011000100
312110102021122110211
41332011023023010
513313003120300
6545521525204
7103263426463
oct17605131304
95412248424
102115285700
11996029500
124b04a3804
13279310558
14160d089da
15c5a864ba
hex7e14b2c4

2115285700 has 108 divisors (see below), whose sum is σ = 5132640240. Its totient is φ = 755902400.

The previous prime is 2115285647. The next prime is 2115285701. The reversal of 2115285700 is 75825112.

It is not an unprimeable number, because it can be changed into a prime (2115285701) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 712419 + ... + 715381.

Almost surely, 22115285700 is an apocalyptic number.

2115285700 is a gapful number since it is divisible by the number (20) 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 2115285700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2566320120).

2115285700 is an abundant number, since it is smaller than the sum of its proper divisors (3017354540).

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

2115285700 is a wasteful number, since it uses less digits than its factorization.

2115285700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3058 (or 3040 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 31.

The square root of 2115285700 is about 45992.2352142185. The cubic root of 2115285700 is about 1283.6787278943.

The spelling of 2115285700 in words is "two billion, one hundred fifteen million, two hundred eighty-five thousand, seven hundred".

Divisors: 1 2 4 5 10 11 20 22 25 44 50 55 59 100 110 118 121 220 236 242 275 295 484 550 590 605 649 1100 1180 1210 1298 1475 2420 2596 2950 2963 3025 3245 5900 5926 6050 6490 7139 11852 12100 12980 14278 14815 16225 28556 29630 32450 32593 35695 59260 64900 65186 71390 74075 130372 142780 148150 162965 174817 178475 296300 325930 349634 356950 358523 651860 699268 713900 717046 814825 874085 1434092 1629650 1748170 1792615 1922987 3259300 3496340 3585230 3845974 4370425 7170460 7691948 8740850 8963075 9614935 17481700 17926150 19229870 21152857 35852300 38459740 42305714 48074675 84611428 96149350 105764285 192298700 211528570 423057140 528821425 1057642850 2115285700