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211020002 = 2105510001
BaseRepresentation
bin11001001001111…
…10100011100010
3112201001221000122
430210332203202
5413010120002
632534520242
75141432444
oct1444764342
9481057018
10211020002
11a912a4a6
125a806082
133494520b
1420050494
15137d46a2
hexc93e8e2

211020002 has 4 divisors (see below), whose sum is σ = 316530006. Its totient is φ = 105510000.

The previous prime is 211020001. The next prime is 211020053. The reversal of 211020002 is 200020112.

211020002 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 177715561 + 33304441 = 13331^2 + 5771^2 .

It is not an unprimeable number, because it can be changed into a prime (211020001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52754999 + ... + 52755002.

Almost surely, 2211020002 is an apocalyptic number.

211020002 is a deficient number, since it is larger than the sum of its proper divisors (105510004).

211020002 is a wasteful number, since it uses less digits than its factorization.

211020002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105510003.

The product of its (nonzero) digits is 8, while the sum is 8.

The square root of 211020002 is about 14526.5275272517. The cubic root of 211020002 is about 595.3529925272.

Adding to 211020002 its reverse (200020112), we get a palindrome (411040114).

The spelling of 211020002 in words is "two hundred eleven million, twenty thousand, two".

Divisors: 1 2 105510001 211020002