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20213311310 = 2519106385849
BaseRepresentation
bin10010110100110011…
…101010011101001110
31221011200220121100122
4102310303222131032
5312344101430220
613141425224542
71313622211523
oct226463523516
957150817318
1020213311310
118632983a65
123b01492152
131ba1942a4a
14d9a77114a
157d4854425
hex4b4cea74e

20213311310 has 16 divisors (see below), whose sum is σ = 38298906000. Its totient is φ = 7659781056.

The previous prime is 20213311303. The next prime is 20213311361. The reversal of 20213311310 is 1311331202.

20213311310 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×202133113102 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 53192735 + ... + 53193114.

It is an arithmetic number, because the mean of its divisors is an integer number (2393681625).

Almost surely, 220213311310 is an apocalyptic number.

20213311310 is a deficient number, since it is larger than the sum of its proper divisors (18085594690).

20213311310 is a wasteful number, since it uses less digits than its factorization.

20213311310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106385875.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 20213311310 its reverse (1311331202), we get a palindrome (21524642512).

The spelling of 20213311310 in words is "twenty billion, two hundred thirteen million, three hundred eleven thousand, three hundred ten".

Divisors: 1 2 5 10 19 38 95 190 106385849 212771698 531929245 1063858490 2021331131 4042662262 10106655655 20213311310