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BaseRepresentation
bin1011101011000000011010001…
…1011001010101010100111000
310222201010112211122221101011001
42322300012203121111110320
51330123332332343240003
612030503224041014344
7335001005640502105
oct27260064331252470
93881115748841131
10821342222243128
1121878330a121723
12781517604843b4
132933b315747c81
14106b7266053aac
1564e4ee1b6261d
hex2eb01a3655538

821342222243128 has 64 divisors (see below), whose sum is σ = 1584566275572000. Its totient is φ = 399010184716800.

The previous prime is 821342222243113. The next prime is 821342222243161.

It is a happy number.

821342222243128 is nontrivially palindromic in base 10.

It is a congruent number.

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 in 15 ways as a sum of consecutive naturals, for example, 31105251 + ... + 51090322.

Almost surely, 2821342222243128 is an apocalyptic number.

It is an amenable number.

821342222243128 is a deficient number, since it is larger than the sum of its proper divisors (763224053328872).

821342222243128 is a wasteful number, since it uses less digits than its factorization.

821342222243128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82195912 (or 82195908 counting only the distinct ones).

The product of its digits is 1179648, while the sum is 46.

The spelling of 821342222243128 in words is "eight hundred twenty-one trillion, three hundred forty-two billion, two hundred twenty-two million, two hundred forty-three thousand, one hundred twenty-eight".