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210106047 = 3193686071
BaseRepresentation
bin11001000010111…
…11011010111111
3112122100111022110
430201133122333
5412241343142
632503145103
75130605034
oct1441373277
9478314273
10210106047
11a8665868
125a445193
13346b5208
141dc9338b
15136a399c
hexc85f6bf

210106047 has 8 divisors (see below), whose sum is σ = 294885760. Its totient is φ = 132698520.

The previous prime is 210106033. The next prime is 210106049. The reversal of 210106047 is 740601012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 210106047 - 24 = 210106031 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210106049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1842979 + ... + 1843092.

It is an arithmetic number, because the mean of its divisors is an integer number (36860720).

Almost surely, 2210106047 is an apocalyptic number.

210106047 is a deficient number, since it is larger than the sum of its proper divisors (84779713).

210106047 is a wasteful number, since it uses less digits than its factorization.

210106047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3686093.

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 210106047 is about 14495.0352534928. The cubic root of 210106047 is about 594.4922316283.

Adding to 210106047 its reverse (740601012), we get a palindrome (950707059).

The spelling of 210106047 in words is "two hundred ten million, one hundred six thousand, forty-seven".

Divisors: 1 3 19 57 3686071 11058213 70035349 210106047