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210012042 = 23311398123
BaseRepresentation
bin11001000010010…
…00011110001010
3112122011201100210
430201020132022
5412230341132
632501141550
75130034002
oct1441103612
9478151323
10210012042
11a8601179
125a3ba8b6
13346814a6
141dc6b002
1513685bcc
hexc84878a

210012042 has 32 divisors (see below), whose sum is σ = 436746240. Its totient is φ = 67250160.

The previous prime is 210012041. The next prime is 210012059. The reversal of 210012042 is 240210012.

It is not an unprimeable number, because it can be changed into a prime (210012041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21793 + ... + 29915.

It is an arithmetic number, because the mean of its divisors is an integer number (13648320).

Almost surely, 2210012042 is an apocalyptic number.

210012042 is an abundant number, since it is smaller than the sum of its proper divisors (226734198).

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

210012042 is a wasteful number, since it uses less digits than its factorization.

210012042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8298.

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 210012042 is about 14491.7922287066. The cubic root of 210012042 is about 594.4035564414.

Adding to 210012042 its reverse (240210012), we get a palindrome (450222054).

The spelling of 210012042 in words is "two hundred ten million, twelve thousand, forty-two".

Divisors: 1 2 3 6 31 62 93 139 186 278 417 834 4309 8123 8618 12927 16246 24369 25854 48738 251813 503626 755439 1129097 1510878 2258194 3387291 6774582 35002007 70004014 105006021 210012042