Search a number
-
+
28896970000 = 245423125639
BaseRepresentation
bin11010111010011001…
…001100010100010000
32202120212202011200011
4122322121030110100
5433140111020000
621135230204304
72042044122643
oct327231142420
982525664604
1028896970000
111128964a298
125725653694
1329569c3222
141581b5ba5a
15b41d952ba
hex6ba64c510

28896970000 has 100 divisors (see below), whose sum is σ = 73004880960. Its totient is φ = 11056144000.

The previous prime is 28896969991. The next prime is 28896970007. The reversal of 28896970000 is 7969882.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (100).

It is not an unprimeable number, because it can be changed into a prime (28896970007) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 167181 + ... + 292819.

Almost surely, 228896970000 is an apocalyptic number.

28896970000 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 28896970000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36502440480).

28896970000 is an abundant number, since it is smaller than the sum of its proper divisors (44107910960).

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

28896970000 is a wasteful number, since it uses less digits than its factorization.

28896970000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125690 (or 125669 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 49.

The spelling of 28896970000 in words is "twenty-eight billion, eight hundred ninety-six million, nine hundred seventy thousand".

Divisors: 1 2 4 5 8 10 16 20 23 25 40 46 50 80 92 100 115 125 184 200 230 250 368 400 460 500 575 625 920 1000 1150 1250 1840 2000 2300 2500 2875 4600 5000 5750 9200 10000 11500 14375 23000 28750 46000 57500 115000 125639 230000 251278 502556 628195 1005112 1256390 2010224 2512780 2889697 3140975 5025560 5779394 6281950 10051120 11558788 12563900 14448485 15704875 23117576 25127800 28896970 31409750 46235152 50255600 57793940 62819500 72242425 78524375 115587880 125639000 144484850 157048750 231175760 251278000 288969700 314097500 361212125 577939400 628195000 722424250 1155878800 1256390000 1444848500 1806060625 2889697000 3612121250 5779394000 7224242500 14448485000 28896970000