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1013122211 = 1397288649
BaseRepresentation
bin111100011000110…
…000010010100011
32121121100221101212
4330120300102203
54033324402321
6244310420335
734051253033
oct7430602243
92547327355
101013122211
1147a976792
122433616ab
13131b82bca
14987a58c3
155de2455b
hex3c6304a3

1013122211 has 4 divisors (see below), whose sum is σ = 1020411000. Its totient is φ = 1005833424.

The previous prime is 1013122169. The next prime is 1013122219. The reversal of 1013122211 is 1122213101.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1013122211 - 218 = 1012860067 is a prime.

It is a super-2 number, since 2×10131222112 = 2052833228843057042, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1013122219) 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, 3644186 + ... + 3644463.

It is an arithmetic number, because the mean of its divisors is an integer number (255102750).

Almost surely, 21013122211 is an apocalyptic number.

1013122211 is a deficient number, since it is larger than the sum of its proper divisors (7288789).

1013122211 is an equidigital number, since it uses as much as digits as its factorization.

1013122211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7288788.

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 1013122211 is about 31829.5807543863. The cubic root of 1013122211 is about 1004.3550761116.

Adding to 1013122211 its reverse (1122213101), we get a palindrome (2135335312).

The spelling of 1013122211 in words is "one billion, thirteen million, one hundred twenty-two thousand, two hundred eleven".

Divisors: 1 139 7288649 1013122211