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22105122680978 = 211052561340489
BaseRepresentation
bin1010000011010101111111…
…11111000011000010010010
32220021020012000011212002122
411001222333333003002102
510344132242401242403
6115002541515014242
74441020355411301
oct501527777030222
986236160155078
1022105122680978
117052803523a67
122590154a3a382
13c4467273b6cc
14565c72246438
15285011b89838
hex141abffc3092

22105122680978 has 4 divisors (see below), whose sum is σ = 33157684021470. Its totient is φ = 11052561340488.

The previous prime is 22105122680911. The next prime is 22105122681163. The reversal of 22105122680978 is 87908622150122.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 14630984552209 + 7474138128769 = 3825047^2 + 2733887^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 5526280670243 + ... + 5526280670246.

Almost surely, 222105122680978 is an apocalyptic number.

22105122680978 is a deficient number, since it is larger than the sum of its proper divisors (11052561340492).

22105122680978 is a wasteful number, since it uses less digits than its factorization.

22105122680978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11052561340491.

The product of its (nonzero) digits is 1935360, while the sum is 53.

The spelling of 22105122680978 in words is "twenty-two trillion, one hundred five billion, one hundred twenty-two million, six hundred eighty thousand, nine hundred seventy-eight".

Divisors: 1 2 11052561340489 22105122680978