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2123043020 = 225729598863
BaseRepresentation
bin111111010001011…
…0001000011001100
312110221212202111222
41332202301003030
513321444334040
6550400102512
7103416365540
oct17642610314
95427782458
102123043020
1199a44770a
124b3004a38
1327aac8397
14161d67a20
15c65b9bb5
hex7e8b10cc

2123043020 has 96 divisors (see below), whose sum is σ = 5360947200. Its totient is φ = 690810624.

The previous prime is 2123043001. The next prime is 2123043053. The reversal of 2123043020 is 203403212.

It is a self number, because there is not a number n which added to its sum of digits gives 2123043020.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 235109 + ... + 243971.

It is an arithmetic number, because the mean of its divisors is an integer number (55843200).

Almost surely, 22123043020 is an apocalyptic number.

2123043020 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 2123043020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2680473600).

2123043020 is an abundant number, since it is smaller than the sum of its proper divisors (3237904180).

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

2123043020 is a wasteful number, since it uses less digits than its factorization.

2123043020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8967 (or 8965 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 2123043020 is about 46076.4909688227. The cubic root of 2123043020 is about 1285.2460116325.

Adding to 2123043020 its reverse (203403212), we get a palindrome (2326446232).

The spelling of 2123043020 in words is "two billion, one hundred twenty-three million, forty-three thousand, twenty".

Divisors: 1 2 4 5 7 10 14 20 28 29 35 58 59 70 116 118 140 145 203 236 290 295 406 413 580 590 812 826 1015 1180 1652 1711 2030 2065 3422 4060 4130 6844 8260 8555 8863 11977 17110 17726 23954 34220 35452 44315 47908 59885 62041 88630 119770 124082 177260 239540 248164 257027 310205 514054 522917 620410 1028108 1045834 1240820 1285135 1799189 2091668 2570270 2614585 3598378 3660419 5140540 5229170 7196756 7320838 8995945 10458340 14641676 15164593 17991890 18302095 30329186 35983780 36604190 60658372 73208380 75822965 106152151 151645930 212304302 303291860 424608604 530760755 1061521510 2123043020