Search a number
-
+
22020232020 = 223519139913807
BaseRepresentation
bin10100100000100000…
…100001001101010100
32002211121221200120220
4110200200201031110
5330044134411040
614041013554340
71406452612113
oct244040411524
962747850526
1022020232020
11937a935266
1243266459b0
1320cc0b6bb7
1410cc729c7a
1588d2c82d0
hex520821354

22020232020 has 96 divisors (see below), whose sum is σ = 64952832000. Its totient is φ = 5558626944.

The previous prime is 22020232019. The next prime is 22020232021. The reversal of 22020232020 is 2023202022.

It is an interprime number because it is at equal distance from previous prime (22020232019) and next prime (22020232021).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22020232021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1587957 + ... + 1601763.

It is an arithmetic number, because the mean of its divisors is an integer number (676592000).

Almost surely, 222020232020 is an apocalyptic number.

22020232020 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 22020232020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32476416000).

22020232020 is an abundant number, since it is smaller than the sum of its proper divisors (42932599980).

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

22020232020 is a wasteful number, since it uses less digits than its factorization.

22020232020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15237 (or 15235 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 15.

Adding to 22020232020 its reverse (2023202022), we get a palindrome (24043434042).

The spelling of 22020232020 in words is "twenty-two billion, twenty million, two hundred thirty-two thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 19 20 30 38 57 60 76 95 114 190 228 285 380 570 1140 1399 2798 4197 5596 6995 8394 13807 13990 16788 20985 26581 27614 27980 41421 41970 53162 55228 69035 79743 82842 83940 106324 132905 138070 159486 165684 207105 262333 265810 276140 318972 398715 414210 524666 531620 786999 797430 828420 1049332 1311665 1573998 1594860 2623330 3147996 3934995 5246660 7869990 15739980 19315993 38631986 57947979 77263972 96579965 115895958 193159930 231791916 289739895 367003867 386319860 579479790 734007734 1101011601 1158959580 1468015468 1835019335 2202023202 3670038670 4404046404 5505058005 7340077340 11010116010 22020232020