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256002212 = 2283771091
BaseRepresentation
bin11110100001001…
…00100010100100
3122211201021000102
433100210202210
51011014032322
641223003232
76225661064
oct1720444244
9584637012
10256002212
11121563284
1271899518
13410646cb
1425ddd3a4
151771c792
hexf4248a4

256002212 has 12 divisors (see below), whose sum is σ = 453402096. Its totient is φ = 126458760.

The previous prime is 256002211. The next prime is 256002217. The reversal of 256002212 is 212200652.

256002212 is digitally balanced in base 3 and base 9, because in such bases it contains all the possibile digits an equal number of times.

256002212 is strictly pandigital in base 9.

It is not an unprimeable number, because it can be changed into a prime (256002211) 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 3 ways as a sum of consecutive naturals, for example, 385214 + ... + 385877.

It is an arithmetic number, because the mean of its divisors is an integer number (37783508).

Almost surely, 2256002212 is an apocalyptic number.

It is an amenable number.

256002212 is a deficient number, since it is larger than the sum of its proper divisors (197399884).

256002212 is a wasteful number, since it uses less digits than its factorization.

256002212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 771178 (or 771176 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 256002212 is about 16000.0691248507. The cubic root of 256002212 is about 634.9622496003.

Adding to 256002212 its reverse (212200652), we get a palindrome (468202864).

The spelling of 256002212 in words is "two hundred fifty-six million, two thousand, two hundred twelve".

Divisors: 1 2 4 83 166 332 771091 1542182 3084364 64000553 128001106 256002212