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202201112020 = 22517888766919
BaseRepresentation
bin1011110001010000100…
…0000001110111010100
3201022220202001202112211
42330110020001313110
511303101441041040
6232520115323204
720415506044135
oct2742410016724
9638822052484
10202201112020
1178831290246
12332308b0504
13160b534ca1b
149b0256bc8c
1553d68108ea
hex2f14201dd4

202201112020 has 48 divisors (see below), whose sum is σ = 449657429760. Its totient is φ = 76113068544.

The previous prime is 202201111961. The next prime is 202201112053. The reversal of 202201112020 is 20211102202.

It is a happy number.

It is a congruent number.

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, 2988121 + ... + 3055039.

It is an arithmetic number, because the mean of its divisors is an integer number (9367863120).

Almost surely, 2202201112020 is an apocalyptic number.

202201112020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202201112020 is an abundant number, since it is smaller than the sum of its proper divisors (247456317740).

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

202201112020 is a wasteful number, since it uses less digits than its factorization.

202201112020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75832 (or 75830 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 202201112020 its reverse (20211102202), we get a palindrome (222412214222).

The spelling of 202201112020 in words is "two hundred two billion, two hundred one million, one hundred twelve thousand, twenty".

Divisors: 1 2 4 5 10 17 20 34 68 85 170 340 8887 17774 35548 44435 66919 88870 133838 151079 177740 267676 302158 334595 604316 669190 755395 1137623 1338380 1510790 2275246 3021580 4550492 5688115 11376230 22752460 594709153 1189418306 2378836612 2973545765 5947091530 10110055601 11894183060 20220111202 40440222404 50550278005 101100556010 202201112020