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20330012020220 = 2257448332392231
BaseRepresentation
bin1001001111101011100110…
…01001010000110111111100
32122222112022111022010102022
410213311303021100313330
510131041331034121340
6111123251213015312
74165536435635420
oct447656311206774
978875274263368
1020330012020220
116528a00868331
122344113a84538
13b4615bb25996
14503d99256b80
15253c6c2453b5
hex127d73250dfc

20330012020220 has 48 divisors (see below), whose sum is σ = 48802914144768. Its totient is φ = 6968734793280.

The previous prime is 20330012020117. The next prime is 20330012020223. The reversal of 20330012020220 is 2202021003302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20330012020223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15568496 + ... + 16823735.

It is an arithmetic number, because the mean of its divisors is an integer number (1016727378016).

Almost surely, 220330012020220 is an apocalyptic number.

20330012020220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20330012020220 is an abundant number, since it is smaller than the sum of its proper divisors (28472902124548).

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

20330012020220 is a wasteful number, since it uses less digits than its factorization.

20330012020220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32396730 (or 32396728 counting only the distinct ones).

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

Adding to 20330012020220 its reverse (2202021003302), we get a palindrome (22532033023522).

The spelling of 20330012020220 in words is "twenty trillion, three hundred thirty billion, twelve million, twenty thousand, two hundred twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 4483 8966 17932 22415 31381 44830 62762 89660 125524 156905 313810 627620 32392231 64784462 129568924 161961155 226745617 323922310 453491234 647844620 906982468 1133728085 2267456170 4534912340 145214371573 290428743146 580857486292 726071857865 1016500601011 1452143715730 2033001202022 2904287431460 4066002404044 5082503005055 10165006010110 20330012020220