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10001440103 = 61981161363
BaseRepresentation
bin10010101000010000…
…11101110101100111
3221211000110210120112
421110020131311213
5130440332040403
64332233323235
7502562560334
oct112410356547
927730423515
1010001440103
114272608a86
121b3156651b
13c350a2ac5
146ac41998b
153d80949d8
hex25421dd67

10001440103 has 4 divisors (see below), whose sum is σ = 10001663448. Its totient is φ = 10001216760.

The previous prime is 10001440087. The next prime is 10001440123. The reversal of 10001440103 is 30104410001.

It is a happy number.

10001440103 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, and also an emirpimes, since its reverse is a distinct semiprime: 30104410001 = 44179681419.

It is a cyclic number.

It is not a de Polignac number, because 10001440103 - 24 = 10001440087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10001440123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18701 + ... + 142662.

It is an arithmetic number, because the mean of its divisors is an integer number (2500415862).

Almost surely, 210001440103 is an apocalyptic number.

10001440103 is a deficient number, since it is larger than the sum of its proper divisors (223345).

10001440103 is an equidigital number, since it uses as much as digits as its factorization.

10001440103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223344.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 10001440103 its reverse (30104410001), we get a palindrome (40105850104).

The spelling of 10001440103 in words is "ten billion, one million, four hundred forty thousand, one hundred three".

Divisors: 1 61981 161363 10001440103