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20000312311213 = 131747880644283
BaseRepresentation
bin1001000110000101011111…
…00000101011110110101101
32121211000022011010120002201
410203002233200223312231
510110141114422424323
6110312003332021501
74132655245435123
oct443025740536655
977730264116081
1020000312311213
1164110a2990083
1222b0240161891
13b21037c02380
144d203d917913
1524a3c24c78ad
hex1230af82bdad

20000312311213 has 8 divisors (see below), whose sum is σ = 21551126918048. Its totient is φ = 18451258996464.

The previous prime is 20000312311207. The next prime is 20000312311237. The reversal of 20000312311213 is 31211321300002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-20000312311213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20000312311253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 440299431 + ... + 440344852.

It is an arithmetic number, because the mean of its divisors is an integer number (2693890864756).

Almost surely, 220000312311213 is an apocalyptic number.

It is an amenable number.

20000312311213 is a deficient number, since it is larger than the sum of its proper divisors (1550814606835).

20000312311213 is a wasteful number, since it uses less digits than its factorization.

20000312311213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 880646043.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 20000312311213 its reverse (31211321300002), we get a palindrome (51211633611215).

The spelling of 20000312311213 in words is "twenty trillion, three hundred twelve million, three hundred eleven thousand, two hundred thirteen".

Divisors: 1 13 1747 22711 880644283 11448375679 1538485562401 20000312311213