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20212312331310 = 2351161249431307
BaseRepresentation
bin1001001100010000010111…
…01100100101010000101110
32122120021111210120102111220
410212020023230211100232
510122124303424100220
6110553224052124210
74154201641041351
oct446101354452056
978507453512456
1020212312331310
116492aa2416a60
122325346606666
13b38022392248
144dc3d1620298
15250b7e1c3540
hex12620bb2542e

20212312331310 has 32 divisors (see below), whose sum is σ = 52919508650112. Its totient is φ = 4899954504480.

The previous prime is 20212312331269. The next prime is 20212312331359. The reversal of 20212312331310 is 1313321321202.

It is a super-2 number, since 2×202123123313102 (a number of 27 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 15 ways as a sum of consecutive naturals, for example, 30624715324 + ... + 30624715983.

It is an arithmetic number, because the mean of its divisors is an integer number (1653734645316).

Almost surely, 220212312331310 is an apocalyptic number.

20212312331310 is an abundant number, since it is smaller than the sum of its proper divisors (32707196318802).

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

20212312331310 is a wasteful number, since it uses less digits than its factorization.

20212312331310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61249431328.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 20212312331310 its reverse (1313321321202), we get a palindrome (21525633652512).

The spelling of 20212312331310 in words is "twenty trillion, two hundred twelve billion, three hundred twelve million, three hundred thirty-one thousand, three hundred ten".

Divisors: 1 2 3 5 6 10 11 15 22 30 33 55 66 110 165 330 61249431307 122498862614 183748293921 306247156535 367496587842 612494313070 673743744377 918741469605 1347487488754 1837482939210 2021231233131 3368718721885 4042462466262 6737437443770 10106156165655 20212312331310