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213012554052 = 22397118281201
BaseRepresentation
bin1100011001100010001…
…0011010000101000100
3202100211012200220212210
43012120202122011010
511442222203212202
6241505010143420
721250435556244
oct3063042320504
9670735626783
10213012554052
118237a040701
1235349581b70
13171191980bc
14a44a397b24
15581aa55c6c
hex319889a144

213012554052 has 24 divisors (see below), whose sum is σ = 497541193632. Its totient is φ = 70931056000.

The previous prime is 213012554033. The next prime is 213012554059. The reversal of 213012554052 is 250455210312.

It is not an unprimeable number, because it can be changed into a prime (213012554059) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9128949 + ... + 9152252.

It is an arithmetic number, because the mean of its divisors is an integer number (20730883068).

Almost surely, 2213012554052 is an apocalyptic number.

It is an amenable number.

213012554052 is an abundant number, since it is smaller than the sum of its proper divisors (284528639580).

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

213012554052 is a wasteful number, since it uses less digits than its factorization.

213012554052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18282179 (or 18282177 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

Adding to 213012554052 its reverse (250455210312), we get a palindrome (463467764364).

The spelling of 213012554052 in words is "two hundred thirteen billion, twelve million, five hundred fifty-four thousand, fifty-two".

Divisors: 1 2 3 4 6 12 971 1942 2913 3884 5826 11652 18281201 36562402 54843603 73124804 109687206 219374412 17751046171 35502092342 53253138513 71004184684 106506277026 213012554052