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20002212 = 22321929243
BaseRepresentation
bin100110001001…
…1010110100100
31101122012212200
41030103112210
520110032322
61552414500
7332005326
oct114232644
941565780
1020002212
1110321a5a
126847430
1341b4439
142929616
151b518ac
hex13135a4

20002212 has 36 divisors (see below), whose sum is σ = 53224080. Its totient is φ = 6316272.

The previous prime is 20002201. The next prime is 20002261. The reversal of 20002212 is 21220002.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is a junction number, because it is equal to n+sod(n) for n = 20002194 and 20002203.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 13938 + ... + 15305.

Almost surely, 220002212 is an apocalyptic number.

It is an amenable number.

20002212 is an abundant number, since it is smaller than the sum of its proper divisors (33221868).

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

20002212 is a wasteful number, since it uses less digits than its factorization.

20002212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29272 (or 29267 counting only the distinct ones).

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

The square root of 20002212 is about 4472.3832572802. The cubic root of 20002212 is about 271.4517684435.

Adding to 20002212 its reverse (21220002), we get a palindrome (41222214).

It can be divided in two parts, 20002 and 212, that multiplied together give a palindrome (4240424).

The spelling of 20002212 in words is "twenty million, two thousand, two hundred twelve".