Search a number
-
+
105942911 = 193548927
BaseRepresentation
bin1100101000010…
…00111101111111
321101100110100112
412110020331333
5204110133121
614302420235
72424333314
oct624107577
9241313315
10105942911
1154890528
122b59167b
1318c44819
14100dad0b
15947a75b
hex6508f7f

105942911 has 4 divisors (see below), whose sum is σ = 106492032. Its totient is φ = 105393792.

The previous prime is 105942883. The next prime is 105942913. The reversal of 105942911 is 119249501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 119249501 = 717035643.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-105942911 is a prime.

It is a super-2 number, since 2×1059429112 = 22447800782307842, 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 (105942913) 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, 274271 + ... + 274656.

It is an arithmetic number, because the mean of its divisors is an integer number (26623008).

Almost surely, 2105942911 is an apocalyptic number.

105942911 is a deficient number, since it is larger than the sum of its proper divisors (549121).

105942911 is an equidigital number, since it uses as much as digits as its factorization.

105942911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 549120.

The product of its (nonzero) digits is 3240, while the sum is 32.

The square root of 105942911 is about 10292.8572806583. The cubic root of 105942911 is about 473.1773713612.

The spelling of 105942911 in words is "one hundred five million, nine hundred forty-two thousand, nine hundred eleven".

Divisors: 1 193 548927 105942911