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202440202000 = 2453719140779
BaseRepresentation
bin1011110010001001100…
…0000101011100010000
3201100112101221210100021
42330202120011130100
511304044142431000
6232555540033224
720424441216361
oct2744230053420
9640471853307
10202440202000
1178944242073
1233298992814
1316122a4259a
149b26207b68
1553ec7dc11a
hex2f22605710

202440202000 has 80 divisors (see below), whose sum is σ = 490184697600. Its totient is φ = 80862883200.

The previous prime is 202440201991. The next prime is 202440202039. The reversal of 202440202000 is 202044202.

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

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1367611 + ... + 1508389.

It is an arithmetic number, because the mean of its divisors is an integer number (6127308720).

Almost surely, 2202440202000 is an apocalyptic number.

202440202000 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 202440202000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (245092348800).

202440202000 is an abundant number, since it is smaller than the sum of its proper divisors (287744495600).

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

202440202000 is a wasteful number, since it uses less digits than its factorization.

202440202000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141521 (or 141505 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 16.

Adding to 202440202000 its reverse (202044202), we get a palindrome (202642246202).

The spelling of 202440202000 in words is "two hundred two billion, four hundred forty million, two hundred two thousand".

Divisors: 1 2 4 5 8 10 16 20 25 40 50 80 100 125 200 250 400 500 719 1000 1438 2000 2876 3595 5752 7190 11504 14380 17975 28760 35950 57520 71900 89875 140779 143800 179750 281558 287600 359500 563116 703895 719000 1126232 1407790 1438000 2252464 2815580 3519475 5631160 7038950 11262320 14077900 17597375 28155800 35194750 56311600 70389500 101220101 140779000 202440202 281558000 404880404 506100505 809760808 1012201010 1619521616 2024402020 2530502525 4048804040 5061005050 8097608080 10122010100 12652512625 20244020200 25305025250 40488040400 50610050500 101220101000 202440202000