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1051010105 = 5210202021
BaseRepresentation
bin111110101001010…
…010010000111001
32201020122211211012
4332221102100321
54123024310410
6252142443305
735021303255
oct7651222071
92636584735
101051010105
1149a2a44a2
12253b93535
1313998a292
149d829265
156240a605
hex3ea52439

1051010105 has 4 divisors (see below), whose sum is σ = 1261212132. Its totient is φ = 840808080.

The previous prime is 1051010101. The next prime is 1051010117. The reversal of 1051010105 is 5010101501.

1051010105 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 662959504 + 388050601 = 25748^2 + 19699^2 .

It is not a de Polignac number, because 1051010105 - 22 = 1051010101 is a prime.

It is a super-2 number, since 2×10510101052 = 2209244481624222050, 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 1051010105.

It is not an unprimeable number, because it can be changed into a prime (1051010101) 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, 105101006 + ... + 105101015.

It is an arithmetic number, because the mean of its divisors is an integer number (315303033).

Almost surely, 21051010105 is an apocalyptic number.

It is an amenable number.

1051010105 is a deficient number, since it is larger than the sum of its proper divisors (210202027).

1051010105 is an equidigital number, since it uses as much as digits as its factorization.

1051010105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210202026.

The product of its (nonzero) digits is 25, while the sum is 14.

The square root of 1051010105 is about 32419.2860038589. The cubic root of 1051010105 is about 1016.7221784016.

Adding to 1051010105 its reverse (5010101501), we get a palindrome (6061111606).

The spelling of 1051010105 in words is "one billion, fifty-one million, ten thousand, one hundred five".

Divisors: 1 5 210202021 1051010105