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106652281 = 448123801
BaseRepresentation
bin1100101101101…
…10001001111001
321102200111102111
412112312021321
5204300333111
614325532321
72433346411
oct626661171
9242614374
10106652281
115522548a
122b8740a1
1319132678
1410243641
15956aa21
hex65b6279

106652281 has 4 divisors (see below), whose sum is σ = 106680564. Its totient is φ = 106624000.

The previous prime is 106652269. The next prime is 106652303. The reversal of 106652281 is 182256601.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 182256601 = 285763793.

It can be written as a sum of positive squares in 2 ways, for example, as 81812025 + 24840256 = 9045^2 + 4984^2 .

It is a cyclic number.

It is not a de Polignac number, because 106652281 - 219 = 106127993 is a prime.

It is a super-2 number, since 2×1066522812 = 22749418085005922, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (106652201) 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, 7420 + ... + 16381.

It is an arithmetic number, because the mean of its divisors is an integer number (26670141).

Almost surely, 2106652281 is an apocalyptic number.

It is an amenable number.

106652281 is a deficient number, since it is larger than the sum of its proper divisors (28283).

106652281 is an equidigital number, since it uses as much as digits as its factorization.

106652281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28282.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 106652281 is about 10327.2591233105. The cubic root of 106652281 is about 474.2311195229.

The spelling of 106652281 in words is "one hundred six million, six hundred fifty-two thousand, two hundred eighty-one".

Divisors: 1 4481 23801 106652281