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2235212020 = 2251761107773
BaseRepresentation
bin1000010100111010…
…1010000011110100
312202202221112110101
42011032222003310
514034203241040
61005444203444
7106250663056
oct20516520364
95682845411
102235212020
11a4779a968
12524699584
1329810ca82
14172c058d6
15d137509a
hex853aa0f4

2235212020 has 48 divisors (see below), whose sum is σ = 5051582928. Its totient is φ = 827688960.

The previous prime is 2235211999. The next prime is 2235212051. The reversal of 2235212020 is 202125322.

It can be written as a sum of positive squares in 8 ways, for example, as 512297956 + 1722914064 = 22634^2 + 41508^2 .

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, 33147 + ... + 74626.

It is an arithmetic number, because the mean of its divisors is an integer number (105241311).

Almost surely, 22235212020 is an apocalyptic number.

2235212020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2235212020 is an abundant number, since it is smaller than the sum of its proper divisors (2816370908).

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

2235212020 is a wasteful number, since it uses less digits than its factorization.

2235212020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107860 (or 107858 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 2235212020 is about 47278.0289352253. The cubic root of 2235212020 is about 1307.4936090559.

Adding to 2235212020 its reverse (202125322), we get a palindrome (2437337342).

The spelling of 2235212020 in words is "two billion, two hundred thirty-five million, two hundred twelve thousand, twenty".

Divisors: 1 2 4 5 10 17 20 34 61 68 85 122 170 244 305 340 610 1037 1220 2074 4148 5185 10370 20740 107773 215546 431092 538865 1077730 1832141 2155460 3664282 6574153 7328564 9160705 13148306 18321410 26296612 32870765 36642820 65741530 111760601 131483060 223521202 447042404 558803005 1117606010 2235212020