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31144234412010 = 2351736000815879
BaseRepresentation
bin1110001010011010101010…
…00001110110011111101010
311002021100201020121110222210
413011031111001312133222
513040231343002141020
6150123244101425550
76363045106411116
oct705152501663752
9132240636543883
1031144234412010
119a18217440545
1235abb6510b2b6
13144bb726339c5
14799563554746
153901edd8c3e0
hex1c53550767ea

31144234412010 has 32 divisors (see below), whose sum is σ = 75178221344640. Its totient is φ = 8257122648128.

The previous prime is 31144234411951. The next prime is 31144234412029. The reversal of 31144234412010 is 1021443244113.

It is a happy number.

It is a super-2 number, since 2×311442344120102 (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3000402750 + ... + 3000413129.

It is an arithmetic number, because the mean of its divisors is an integer number (2349319417020).

Almost surely, 231144234412010 is an apocalyptic number.

31144234412010 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

31144234412010 is an abundant number, since it is smaller than the sum of its proper divisors (44033986932630).

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

31144234412010 is a wasteful number, since it uses less digits than its factorization.

31144234412010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6000816062.

The product of its (nonzero) digits is 9216, while the sum is 30.

Adding to 31144234412010 its reverse (1021443244113), we get a palindrome (32165677656123).

The spelling of 31144234412010 in words is "thirty-one trillion, one hundred forty-four billion, two hundred thirty-four million, four hundred twelve thousand, ten".

Divisors: 1 2 3 5 6 10 15 30 173 346 519 865 1038 1730 2595 5190 6000815879 12001631758 18002447637 30004079395 36004895274 60008158790 90012238185 180024476370 1038141147067 2076282294134 3114423441201 5190705735335 6228846882402 10381411470670 15572117206005 31144234412010