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2218028106957 = 313431322616641
BaseRepresentation
bin100000010001101100110…
…001110000010011001101
321212001010012012020222120
4200101230301300103031
5242320010143410312
64414540440003153
7316150542556455
oct40215461602315
97761105166876
102218028106957
1178572a051633
122b9a511604b9
1313120b875250
14794d2dd6d65
153ca6900d28c
hex2046cc704cd

2218028106957 has 16 divisors (see below), whose sum is σ = 3258927405888. Its totient is φ = 1333197573120.

The previous prime is 2218028106949. The next prime is 2218028106967. The reversal of 2218028106957 is 7596018208122.

It is not a de Polignac number, because 2218028106957 - 23 = 2218028106949 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2218028106967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 661306644 + ... + 661309997.

It is an arithmetic number, because the mean of its divisors is an integer number (203682962868).

Almost surely, 22218028106957 is an apocalyptic number.

It is an amenable number.

2218028106957 is a deficient number, since it is larger than the sum of its proper divisors (1040899298931).

2218028106957 is a wasteful number, since it uses less digits than its factorization.

2218028106957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1322616700.

The product of its (nonzero) digits is 967680, while the sum is 51.

The spelling of 2218028106957 in words is "two trillion, two hundred eighteen billion, twenty-eight million, one hundred six thousand, nine hundred fifty-seven".

Divisors: 1 3 13 39 43 129 559 1677 1322616641 3967849923 17194016333 51582048999 56872515563 170617546689 739342702319 2218028106957