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213102103 = 3315231231
BaseRepresentation
bin11001011001110…
…10111000010111
3112211222201010111
430230322320113
5414023231403
633051303451
75165223634
oct1454727027
9484881114
10213102103
11aa321845
125b44ab87
13351c3b26
142043318b
1513a9656d
hexcb3ae17

213102103 has 8 divisors (see below), whose sum is σ = 214328576. Its totient is φ = 211879800.

The previous prime is 213102079. The next prime is 213102139. The reversal of 213102103 is 301201312.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-213102103 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 (213102173) 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, 172498 + ... + 173728.

It is an arithmetic number, because the mean of its divisors is an integer number (26791072).

Almost surely, 2213102103 is an apocalyptic number.

213102103 is a deficient number, since it is larger than the sum of its proper divisors (1226473).

213102103 is a wasteful number, since it uses less digits than its factorization.

213102103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2085.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 213102103 is about 14598.0170913724. The cubic root of 213102103 is about 597.3046721808.

Adding to 213102103 its reverse (301201312), we get a palindrome (514303415).

The spelling of 213102103 in words is "two hundred thirteen million, one hundred two thousand, one hundred three".

Divisors: 1 331 523 1231 173113 407461 643813 213102103