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2134875220 = 225106743761
BaseRepresentation
bin111111100111111…
…1001110001010100
312111210010220020121
41333033321301110
513333012001340
6551501441324
7103622066002
oct17717716124
95453126217
102134875220
119a6099395
124b6b70244
132803abb9a
14163767a72
15c765594a
hex7f3f9c54

2134875220 has 12 divisors (see below), whose sum is σ = 4483238004. Its totient is φ = 853950080.

The previous prime is 2134875217. The next prime is 2134875221. The reversal of 2134875220 is 225784312.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 963729936 + 1171145284 = 31044^2 + 34222^2 .

It is a super-3 number, since 3×21348752203 (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2134875221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53371861 + ... + 53371900.

It is an arithmetic number, because the mean of its divisors is an integer number (373603167).

Almost surely, 22134875220 is an apocalyptic number.

2134875220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2134875220 is an abundant number, since it is smaller than the sum of its proper divisors (2348362784).

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

2134875220 is a wasteful number, since it uses less digits than its factorization.

2134875220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106743770 (or 106743768 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 2134875220 is about 46204.7099330793. The cubic root of 2134875220 is about 1287.6292454537.

The spelling of 2134875220 in words is "two billion, one hundred thirty-four million, eight hundred seventy-five thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 106743761 213487522 426975044 533718805 1067437610 2134875220