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212002002 = 23317230939
BaseRepresentation
bin11001010001011…
…10010011010010
3112202220211002000
430220232103102
5413233031002
633011534430
75152662432
oct1450562322
9482824060
10212002002
11a9740273
125abba416
1334bca194
14202282c2
151392a61c
hexca2e4d2

212002002 has 32 divisors (see below), whose sum is σ = 498830400. Its totient is φ = 66510144.

The previous prime is 212001983. The next prime is 212002027. The reversal of 212002002 is 200200212.

It is a Harshad number since it is a multiple of its sum of digits (9).

212002002 is a modest number, since divided by 2002 gives 212 as remainder.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 114552 + ... + 116387.

It is an arithmetic number, because the mean of its divisors is an integer number (15588450).

Almost surely, 2212002002 is an apocalyptic number.

212002002 is an abundant number, since it is smaller than the sum of its proper divisors (286828398).

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

212002002 is a wasteful number, since it uses less digits than its factorization.

212002002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230967 (or 230961 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

The square root of 212002002 is about 14560.2885273610. The cubic root of 212002002 is about 596.2750727165.

Adding to 212002002 its reverse (200200212), we get a palindrome (412202214).

The spelling of 212002002 in words is "two hundred twelve million, two thousand, two".

Divisors: 1 2 3 6 9 17 18 27 34 51 54 102 153 306 459 918 230939 461878 692817 1385634 2078451 3925963 4156902 6235353 7851926 11777889 12470706 23555778 35333667 70667334 106001001 212002002