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21131022143190 = 235704367404773
BaseRepresentation
bin1001100110111111100110…
…00100011000111011010110
32202211002212021011102121210
410303133303010120323112
510232202313132040230
6112535242455522250
74310444266432401
oct463376304307326
982732767142553
1021131022143190
11680768612a3a3
122453400689386
13ba385414504b
14530a65802d38
152699ee067eb0
hex1337f3118ed6

21131022143190 has 16 divisors (see below), whose sum is σ = 50714453143728. Its totient is φ = 5634939238176.

The previous prime is 21131022143171. The next prime is 21131022143191. The reversal of 21131022143190 is 9134122013112.

It is a super-2 number, since 2×211310221431902 (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 704367404773 = 21131022143190 / (2 + 1 + 1 + 3 + 1 + 0 + 2 + 2 + 1 + 4 + 3 + 1 + 9 + 0).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21131022143191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 352183702357 + ... + 352183702416.

It is an arithmetic number, because the mean of its divisors is an integer number (3169653321483).

Almost surely, 221131022143190 is an apocalyptic number.

21131022143190 is an abundant number, since it is smaller than the sum of its proper divisors (29583431000538).

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

21131022143190 is a wasteful number, since it uses less digits than its factorization.

21131022143190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 704367404783.

The product of its (nonzero) digits is 2592, while the sum is 30.

The spelling of 21131022143190 in words is "twenty-one trillion, one hundred thirty-one billion, twenty-two million, one hundred forty-three thousand, one hundred ninety".

Divisors: 1 2 3 5 6 10 15 30 704367404773 1408734809546 2113102214319 3521837023865 4226204428638 7043674047730 10565511071595 21131022143190