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212452552 = 23132042813
BaseRepresentation
bin11001010100111…
…00010011001000
3112210202201010001
430222130103020
5413341440202
633025332344
75156550124
oct1452342310
9483681101
10212452552
11a9a18824
125b1970b4
1335027290
1420304584
15139b8d87
hexca9c4c8

212452552 has 16 divisors (see below), whose sum is σ = 428990940. Its totient is φ = 98054976.

The previous prime is 212452531. The next prime is 212452571. The reversal of 212452552 is 255254212.

It can be written as a sum of positive squares in 2 ways, for example, as 212401476 + 51076 = 14574^2 + 226^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 212452552.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1021303 + ... + 1021510.

Almost surely, 2212452552 is an apocalyptic number.

It is an amenable number.

212452552 is an abundant number, since it is smaller than the sum of its proper divisors (216538388).

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

212452552 is a wasteful number, since it uses less digits than its factorization.

212452552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2042832 (or 2042828 counting only the distinct ones).

The product of its digits is 8000, while the sum is 28.

The square root of 212452552 is about 14575.7521932832. The cubic root of 212452552 is about 596.6971782337.

The spelling of 212452552 in words is "two hundred twelve million, four hundred fifty-two thousand, five hundred fifty-two".

Divisors: 1 2 4 8 13 26 52 104 2042813 4085626 8171252 16342504 26556569 53113138 106226276 212452552