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106801309 = 307347887
BaseRepresentation
bin1100101110110…
…10100010011101
321102222001212001
412113122202131
5204320120214
614333042301
72434540036
oct627324235
9242861761
10106801309
115531744a
122b926391
1319185454
1410281a8d
159599c74
hex65da89d

106801309 has 4 divisors (see below), whose sum is σ = 107149504. Its totient is φ = 106453116.

The previous prime is 106801297. The next prime is 106801313. The reversal of 106801309 is 903108601.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 106801309 - 211 = 106799261 is a prime.

It is a super-2 number, since 2×1068013092 = 22813039208226962, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106801909) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 173637 + ... + 174250.

It is an arithmetic number, because the mean of its divisors is an integer number (26787376).

Almost surely, 2106801309 is an apocalyptic number.

It is an amenable number.

106801309 is a deficient number, since it is larger than the sum of its proper divisors (348195).

106801309 is an equidigital number, since it uses as much as digits as its factorization.

106801309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348194.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 106801309 is about 10334.4718781368. The cubic root of 106801309 is about 474.4519018699.

The spelling of 106801309 in words is "one hundred six million, eight hundred one thousand, three hundred nine".

Divisors: 1 307 347887 106801309