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10311031478 = 2111916134003
BaseRepresentation
bin10011001101001010…
…11101101010110110
3222121121000200002202
421212211131222312
5132104111001403
64423053104502
7513342215156
oct114645355266
928547020082
1010311031478
114411343620
121bb9188132
13c8427b477
146db5a8766
1540534a688
hex26695dab6

10311031478 has 32 divisors (see below), whose sum is σ = 16992847872. Its totient is φ = 4653525600.

The previous prime is 10311031477. The next prime is 10311031487. The reversal of 10311031478 is 87413011301.

It is a self number, because there is not a number n which added to its sum of digits gives 10311031478.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10311031477) by changing a digit.

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, 2573825 + ... + 2577827.

It is an arithmetic number, because the mean of its divisors is an integer number (531026496).

Almost surely, 210311031478 is an apocalyptic number.

10311031478 is a deficient number, since it is larger than the sum of its proper divisors (6681816394).

10311031478 is a wasteful number, since it uses less digits than its factorization.

10311031478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4820.

The product of its (nonzero) digits is 2016, while the sum is 29.

Adding to 10311031478 its reverse (87413011301), we get a palindrome (97724042779).

The spelling of 10311031478 in words is "ten billion, three hundred eleven million, thirty-one thousand, four hundred seventy-eight".

Divisors: 1 2 11 22 191 382 613 1226 2101 4003 4202 6743 8006 13486 44033 88066 117083 234166 764573 1287913 1529146 2453839 2575826 4907678 8410303 16820606 26992229 53984458 468683249 937366498 5155515739 10311031478