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106391797 = 1722927329
BaseRepresentation
bin1100101011101…
…10100011110101
321102012021002221
412111312203311
5204214014142
614320202341
72431213111
oct625664365
9242167087
10106391797
1155067806
122b7693b1
1319070c35
14101b6741
159518767
hex65768f5

106391797 has 8 divisors (see below), whose sum is σ = 113146200. Its totient is φ = 99692544.

The previous prime is 106391759. The next prime is 106391801. The reversal of 106391797 is 797193601.

106391797 is nontrivially palindromic in base 6.

It can be written as a sum of positive squares in 4 ways, for example, as 53597041 + 52794756 = 7321^2 + 7266^2 .

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 106391797 - 27 = 106391669 is a prime.

It is a super-2 number, since 2×1063917972 = 22638428937778418, 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 (106391707) 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, 9772 + ... + 17557.

It is an arithmetic number, because the mean of its divisors is an integer number (14143275).

Almost surely, 2106391797 is an apocalyptic number.

106391797 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

106391797 is a deficient number, since it is larger than the sum of its proper divisors (6754403).

106391797 is a wasteful number, since it uses less digits than its factorization.

106391797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27575.

The product of its (nonzero) digits is 71442, while the sum is 43.

The square root of 106391797 is about 10314.6399355479. The cubic root of 106391797 is about 473.8447226492.

The spelling of 106391797 in words is "one hundred six million, three hundred ninety-one thousand, seven hundred ninety-seven".

Divisors: 1 17 229 3893 27329 464593 6258341 106391797