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10003131112 = 23132325116661
BaseRepresentation
bin10010101000011101…
…11010101011101000
3221211010122201012111
421110032322223220
5130441300143422
64332333452104
7502613132362
oct112416725350
927733581174
1010003131112
114273563507
121b32041034
13c355456c0
146ac739d32
153d82caa77
hex2543baae8

10003131112 has 64 divisors (see below), whose sum is σ = 21162072960. Its totient is φ = 4398240000.

The previous prime is 10003131107. The next prime is 10003131167. The reversal of 10003131112 is 21113130001.

10003131112 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a junction number, because it is equal to n+sod(n) for n = 10003131092 and 10003131101.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 592062 + ... + 608722.

It is an arithmetic number, because the mean of its divisors is an integer number (330657390).

Almost surely, 210003131112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10003131112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10581036480).

10003131112 is an abundant number, since it is smaller than the sum of its proper divisors (11158941848).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10003131112 is a wasteful number, since it uses less digits than its factorization.

10003131112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16954 (or 16950 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 10003131112 its reverse (21113130001), we get a palindrome (31116261113).

The spelling of 10003131112 in words is "ten billion, three million, one hundred thirty-one thousand, one hundred twelve".

Divisors: 1 2 4 8 13 23 26 46 52 92 104 184 251 299 502 598 1004 1196 2008 2392 3263 5773 6526 11546 13052 16661 23092 26104 33322 46184 66644 75049 133288 150098 216593 300196 383203 433186 600392 766406 866372 1532812 1732744 3065624 4181911 4981639 8363822 9963278 16727644 19926556 33455288 39853112 54364843 96183953 108729686 192367906 217459372 384735812 434918744 769471624 1250391389 2500782778 5001565556 10003131112