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22020302000 = 245379139369
BaseRepresentation
bin10100100000100000…
…110010010010110000
32002211122002020120202
4110200200302102300
5330044144131000
614041015254332
71406453323124
oct244040622260
962748066522
1022020302000
11937a9828a4
12432667a3a8
1320cc10c9c8
1410cc747584
1588d2dddd5
hex5208324b0

22020302000 has 80 divisors (see below), whose sum is σ = 53919465600. Its totient is φ = 8696563200.

The previous prime is 22020301993. The next prime is 22020302039. The reversal of 22020302000 is 20302022.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 88316 + ... + 227684.

It is an arithmetic number, because the mean of its divisors is an integer number (673993320).

Almost surely, 222020302000 is an apocalyptic number.

22020302000 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 22020302000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26959732800).

22020302000 is an abundant number, since it is smaller than the sum of its proper divisors (31899163600).

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

22020302000 is a wasteful number, since it uses less digits than its factorization.

22020302000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139471 (or 139455 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 11.

Adding to 22020302000 its reverse (20302022), we get a palindrome (22040604022).

The spelling of 22020302000 in words is "twenty-two billion, twenty million, three hundred two thousand".

Divisors: 1 2 4 5 8 10 16 20 25 40 50 79 80 100 125 158 200 250 316 395 400 500 632 790 1000 1264 1580 1975 2000 3160 3950 6320 7900 9875 15800 19750 31600 39500 79000 139369 158000 278738 557476 696845 1114952 1393690 2229904 2787380 3484225 5574760 6968450 11010151 11149520 13936900 17421125 22020302 27873800 34842250 44040604 55050755 55747600 69684500 88081208 110101510 139369000 176162416 220203020 275253775 278738000 440406040 550507550 880812080 1101015100 1376268875 2202030200 2752537750 4404060400 5505075500 11010151000 22020302000