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103211213 = 716379007
BaseRepresentation
bin1100010011011…
…10000011001101
321012012200011112
412021232003031
5202410224323
614124101405
72362165220
oct611560315
9235180145
10103211213
1153295126
122a694865
13184c9331
14d9c95b7
1590db178
hex626e0cd

103211213 has 8 divisors (see below), whose sum is σ = 118040832. Its totient is φ = 88402896.

The previous prime is 103211197. The next prime is 103211231. The reversal of 103211213 is 312112301.

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

It is a cyclic number.

It is not a de Polignac number, because 103211213 - 24 = 103211197 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103211293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6956 + ... + 15962.

It is an arithmetic number, because the mean of its divisors is an integer number (14755104).

Almost surely, 2103211213 is an apocalyptic number.

It is an amenable number.

103211213 is a deficient number, since it is larger than the sum of its proper divisors (14829619).

103211213 is an equidigital number, since it uses as much as digits as its factorization.

103211213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10651.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 103211213 is about 10159.2919536747. The cubic root of 103211213 is about 469.0750073629.

Adding to 103211213 its reverse (312112301), we get a palindrome (415323514).

The spelling of 103211213 in words is "one hundred three million, two hundred eleven thousand, two hundred thirteen".

Divisors: 1 7 1637 9007 11459 63049 14744459 103211213