Search a number
-
+
106242641 = 233455977
BaseRepresentation
bin1100101010100…
…10001001010001
321101220200111122
412111102021101
5204144231031
614313052025
72430022211
oct625221121
9241820448
10106242641
1154a7573a
122b6b7015
131901b08b
1410178241
1594d947b
hex6552251

106242641 has 4 divisors (see below), whose sum is σ = 106698852. Its totient is φ = 105786432.

The previous prime is 106242613. The next prime is 106242649. The reversal of 106242641 is 146242601.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 146242601 = 197696979.

It can be written as a sum of positive squares in 2 ways, for example, as 23814400 + 82428241 = 4880^2 + 9079^2 .

It is a cyclic number.

It is not a de Polignac number, because 106242641 - 222 = 102048337 is a prime.

It is a super-2 number, since 2×1062426412 = 22574997533309762, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 106242641.

It is not an unprimeable number, because it can be changed into a prime (106242649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 227756 + ... + 228221.

It is an arithmetic number, because the mean of its divisors is an integer number (26674713).

Almost surely, 2106242641 is an apocalyptic number.

It is an amenable number.

106242641 is a deficient number, since it is larger than the sum of its proper divisors (456211).

106242641 is an equidigital number, since it uses as much as digits as its factorization.

106242641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 456210.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 106242641 is about 10307.4070939301. The cubic root of 106242641 is about 473.6231835217.

The spelling of 106242641 in words is "one hundred six million, two hundred forty-two thousand, six hundred forty-one".

Divisors: 1 233 455977 106242641