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213001041220 = 225111065190901
BaseRepresentation
bin1100011001011111011…
…0011111010101000100
3202100210102001000020121
43012113312133111010
511442211231304340
6241503515311324
721250235656162
oct3062766372504
9670712030217
10213001041220
1182373597970
123534574b544
1317116996a86
14a448a3c232
155819a2e94a
hex3197d9f544

213001041220 has 48 divisors (see below), whose sum is σ = 488017204416. Its totient is φ = 77446800000.

The previous prime is 213001041163. The next prime is 213001041313. The reversal of 213001041220 is 22140100312.

It is a junction number, because it is equal to n+sod(n) for n = 213001041194 and 213001041203.

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, 2297770 + ... + 2388670.

It is an arithmetic number, because the mean of its divisors is an integer number (10167025092).

Almost surely, 2213001041220 is an apocalyptic number.

213001041220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213001041220 is an abundant number, since it is smaller than the sum of its proper divisors (275016163196).

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

213001041220 is a wasteful number, since it uses less digits than its factorization.

213001041220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101572 (or 101570 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 213001041220 its reverse (22140100312), we get a palindrome (235141141532).

The spelling of 213001041220 in words is "two hundred thirteen billion, one million, forty-one thousand, two hundred twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 10651 21302 42604 53255 90901 106510 117161 181802 213020 234322 363604 454505 468644 585805 909010 999911 1171610 1818020 1999822 2343220 3999644 4999555 9999110 19998220 968186551 1936373102 3872746204 4840932755 9681865510 10650052061 19363731020 21300104122 42600208244 53250260305 106500520610 213001041220