Search a number
-
+
2115025000 = 2355117691
BaseRepresentation
bin111111000010000…
…1011100001101000
312110101210101212021
41332010023201220
513312421300000
6545512154224
7103261262434
oct17604134150
95411711767
102115025000
11995970650
124b0398974
1327924b9aa
14160c7b9c4
15c5a3411a
hex7e10b868

2115025000 has 96 divisors (see below), whose sum is σ = 5408091360. Its totient is φ = 769000000.

The previous prime is 2115024997. The next prime is 2115025009. The reversal of 2115025000 is 5205112.

It is not an unprimeable number, because it can be changed into a prime (2115025009) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 271155 + ... + 278845.

It is an arithmetic number, because the mean of its divisors is an integer number (56334285).

Almost surely, 22115025000 is an apocalyptic number.

2115025000 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 2115025000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2704045680).

2115025000 is an abundant number, since it is smaller than the sum of its proper divisors (3293066360).

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

2115025000 is an equidigital number, since it uses as much as digits as its factorization.

2115025000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7733 (or 7709 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 16.

The square root of 2115025000 is about 45989.4009528283. The cubic root of 2115025000 is about 1283.6259897396.

The spelling of 2115025000 in words is "two billion, one hundred fifteen million, twenty-five thousand".

Divisors: 1 2 4 5 8 10 11 20 22 25 40 44 50 55 88 100 110 125 200 220 250 275 440 500 550 625 1000 1100 1250 1375 2200 2500 2750 3125 5000 5500 6250 6875 7691 11000 12500 13750 15382 25000 27500 30764 34375 38455 55000 61528 68750 76910 84601 137500 153820 169202 192275 275000 307640 338404 384550 423005 676808 769100 846010 961375 1538200 1692020 1922750 2115025 3384040 3845500 4230050 4806875 7691000 8460100 9613750 10575125 16920200 19227500 21150250 24034375 38455000 42300500 48068750 52875625 84601000 96137500 105751250 192275000 211502500 264378125 423005000 528756250 1057512500 2115025000