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106976605 = 521395321
BaseRepresentation
bin1100110000001…
…01010101011101
321110021222022111
412120011111131
5204341222410
614340514021
72436200101
oct630052535
9243258274
10106976605
115542711a
122b9ab911
1319217188
14102c9901
1595d1b8a
hex660555d

106976605 has 4 divisors (see below), whose sum is σ = 128371932. Its totient is φ = 85581280.

The previous prime is 106976603. The next prime is 106976627. The reversal of 106976605 is 506679601.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 506679601 = 4691108011.

It can be written as a sum of positive squares in 2 ways, for example, as 73925604 + 33051001 = 8598^2 + 5749^2 .

It is not a de Polignac number, because 106976605 - 21 = 106976603 is a prime.

It is a super-2 number, since 2×1069766052 = 22887988034652050, 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 (106976603) 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 3 ways as a sum of consecutive naturals, for example, 10697656 + ... + 10697665.

It is an arithmetic number, because the mean of its divisors is an integer number (32092983).

Almost surely, 2106976605 is an apocalyptic number.

It is an amenable number.

106976605 is a deficient number, since it is larger than the sum of its proper divisors (21395327).

106976605 is an equidigital number, since it uses as much as digits as its factorization.

106976605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21395326.

The product of its (nonzero) digits is 68040, while the sum is 40.

The square root of 106976605 is about 10342.9495309607. The cubic root of 106976605 is about 474.7113370772.

The spelling of 106976605 in words is "one hundred six million, nine hundred seventy-six thousand, six hundred five".

Divisors: 1 5 21395321 106976605