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106761809 = 7112126047
BaseRepresentation
bin1100101110100…
…00111001010001
321102220001200002
412113100321101
5204312334214
614332135345
72434313630
oct627207121
9242801602
10106761809
115529a800
122b907555
131917048b
1410271517
15958d1de
hex65d0e51

106761809 has 12 divisors (see below), whose sum is σ = 134115072. Its totient is φ = 83190360.

The previous prime is 106761803. The next prime is 106761833. The reversal of 106761809 is 908167601.

It is not a de Polignac number, because 106761809 - 24 = 106761793 is a prime.

It is a super-2 number, since 2×1067618092 = 22796167721904962, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (106761803) 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 11 ways as a sum of consecutive naturals, for example, 62177 + ... + 63870.

It is an arithmetic number, because the mean of its divisors is an integer number (11176256).

Almost surely, 2106761809 is an apocalyptic number.

It is an amenable number.

106761809 is a deficient number, since it is larger than the sum of its proper divisors (27353263).

106761809 is a wasteful number, since it uses less digits than its factorization.

106761809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126076 (or 126065 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 38.

The square root of 106761809 is about 10332.5606216465. The cubic root of 106761809 is about 474.3934033328.

The spelling of 106761809 in words is "one hundred six million, seven hundred sixty-one thousand, eight hundred nine".

Divisors: 1 7 11 77 121 847 126047 882329 1386517 9705619 15251687 106761809