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20311303312010 = 2519112395192873
BaseRepresentation
bin1001001111001000110000…
…00001001101001010001010
32122220202000122120021111102
410213210120001031022022
510130240022121441020
6111110514532301402
74164305013352544
oct447443001151212
978822018507442
1020311303312010
116520a80228a07
122340572471862
13b44469b27439
14503102666694
15253524a49475
hex12791804d28a

20311303312010 has 32 divisors (see below), whose sum is σ = 38518844535360. Its totient is φ = 7690060971648.

The previous prime is 20311303312009. The next prime is 20311303312019. The reversal of 20311303312010 is 1021330311302.

It is not an unprimeable number, because it can be changed into a prime (20311303312019) 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 15 ways as a sum of consecutive naturals, for example, 47383067 + ... + 47809806.

It is an arithmetic number, because the mean of its divisors is an integer number (1203713891730).

Almost surely, 220311303312010 is an apocalyptic number.

20311303312010 is a deficient number, since it is larger than the sum of its proper divisors (18207541223350).

20311303312010 is a wasteful number, since it uses less digits than its factorization.

20311303312010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95194022.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 20311303312010 its reverse (1021330311302), we get a palindrome (21332633623312).

The spelling of 20311303312010 in words is "twenty trillion, three hundred eleven billion, three hundred three million, three hundred twelve thousand, ten".

Divisors: 1 2 5 10 19 38 95 190 1123 2246 5615 11230 21337 42674 106685 213370 95192873 190385746 475964365 951928730 1808664587 3617329174 9043322935 18086645870 106901596379 213803192758 534507981895 1069015963790 2031130331201 4062260662402 10155651656005 20311303312010