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12440005010 = 252961436983
BaseRepresentation
bin10111001010111101…
…10110100110010010
31012002222001201202022
423211132312212102
5200434120130020
65414224251442
7620163204116
oct134536664622
935088051668
1012440005010
115304070984
1224b2170b82
131233372014
14860237746
154cc1d7625
hex2e57b6992

12440005010 has 32 divisors (see below), whose sum is σ = 23171235840. Its totient is φ = 4802945728.

The previous prime is 12440005007. The next prime is 12440005031. The reversal of 12440005010 is 1050004421.

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 12440005010.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1777979 + ... + 1784961.

It is an arithmetic number, because the mean of its divisors is an integer number (724101120).

Almost surely, 212440005010 is an apocalyptic number.

12440005010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12440005010 is a deficient number, since it is larger than the sum of its proper divisors (10731230830).

12440005010 is a wasteful number, since it uses less digits than its factorization.

12440005010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13162.

The product of its (nonzero) digits is 160, while the sum is 17.

Adding to 12440005010 its reverse (1050004421), we get a palindrome (13490009431).

The spelling of 12440005010 in words is "twelve billion, four hundred forty million, five thousand, ten".

Divisors: 1 2 5 10 29 58 145 290 6143 6983 12286 13966 30715 34915 61430 69830 178147 202507 356294 405014 890735 1012535 1781470 2025070 42896569 85793138 214482845 428965690 1244000501 2488001002 6220002505 12440005010