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105103071 = 3242127739
BaseRepresentation
bin1100100001110…
…11111011011111
321022202210022100
412100323323133
5203401244241
614232420143
72414234643
oct620737337
9238683270
10105103071
1154367547
122b247653
1318a0c488
14dd5cc23
1593619b6
hex643bedf

105103071 has 12 divisors (see below), whose sum is σ = 152181640. Its totient is φ = 69899760.

The previous prime is 105103069. The next prime is 105103073. The reversal of 105103071 is 170301501.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (105103069) and next prime (105103073).

It is not a de Polignac number, because 105103071 - 21 = 105103069 is a prime.

It is a super-2 number, since 2×1051030712 = 22093311067262082, 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 (105103073) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10081 + ... + 17658.

Almost surely, 2105103071 is an apocalyptic number.

105103071 is a deficient number, since it is larger than the sum of its proper divisors (47078569).

105103071 is a wasteful number, since it uses less digits than its factorization.

105103071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28166 (or 28163 counting only the distinct ones).

The product of its (nonzero) digits is 105, while the sum is 18.

The square root of 105103071 is about 10251.9788821476. The cubic root of 105103071 is about 471.9237149888.

Adding to 105103071 its reverse (170301501), we get a palindrome (275404572).

It can be divided in two parts, 10 and 5103071, that added together give a square (5103081 = 22592).

The spelling of 105103071 in words is "one hundred five million, one hundred three thousand, seventy-one".

Divisors: 1 3 9 421 1263 3789 27739 83217 249651 11678119 35034357 105103071