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212710084 = 2253177521
BaseRepresentation
bin11001010110110…
…11001011000100
3112211020210101021
430223123023010
5413423210314
633035040524
75162002006
oct1453331304
9484223337
10212710084
11aa084264
125b2a0144
13350b7572
1420370376
1513a1a324
hexcadb2c4

212710084 has 6 divisors (see below), whose sum is σ = 372242654. Its totient is φ = 106355040.

The previous prime is 212710079. The next prime is 212710087. The reversal of 212710084 is 480017212.

It is a happy number.

212710084 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 209612484 + 3097600 = 14478^2 + 1760^2 .

It is not an unprimeable number, because it can be changed into a prime (212710087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26588757 + ... + 26588764.

Almost surely, 2212710084 is an apocalyptic number.

It is an amenable number.

212710084 is a deficient number, since it is larger than the sum of its proper divisors (159532570).

212710084 is a wasteful number, since it uses less digits than its factorization.

212710084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53177525 (or 53177523 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 25.

The square root of 212710084 is about 14584.5837787713. The cubic root of 212710084 is about 596.9381835254.

Adding to 212710084 its reverse (480017212), we get a palindrome (692727296).

The spelling of 212710084 in words is "two hundred twelve million, seven hundred ten thousand, eighty-four".

Divisors: 1 2 4 53177521 106355042 212710084