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70111 is a prime number
BaseRepresentation
bin10001000111011111
310120011201
4101013133
54220421
61300331
7411256
oct210737
9116151
1070111
1148748
12346a7
1325bb2
141b79d
1515b91
hex111df

70111 has 2 divisors, whose sum is σ = 70112. Its totient is φ = 70110.

The previous prime is 70099. The next prime is 70117. The reversal of 70111 is 11107.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 70111 - 25 = 70079 is a prime.

It is a Chen prime.

70111 is a modest number, since divided by 111 gives 70 as remainder.

It is a plaindrome in base 16.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70117) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35055 + 35056.

It is an arithmetic number, because the mean of its divisors is an integer number (35056).

270111 is an apocalyptic number.

70111 is a deficient number, since it is larger than the sum of its proper divisors (1).

70111 is an equidigital number, since it uses as much as digits as its factorization.

70111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7, while the sum is 10.

The square root of 70111 is about 264.7848182959. The cubic root of 70111 is about 41.2346254304.

Adding to 70111 its reverse (11107), we get a palindrome (81218).

It can be divided in two parts, 70 and 111, that added together give a palindrome (181).

The spelling of 70111 in words is "seventy thousand, one hundred eleven", and thus it is an iban number.