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990412214099 = 71123559238969
BaseRepresentation
bin11100110100110010010…
…10110000111101010011
310111200102112022102210112
432122121022300331103
5112211331011322344
62034553350551535
7131361223626320
oct16323112607523
93450375272715
10990412214099
113520389694a0
1213bb470685ab
137251ab08249
1435d16d47b47
151ab69b80c9e
hexe6992b0f53

990412214099 has 16 divisors (see below), whose sum is σ = 1288486586880. Its totient is φ = 738195437760.

The previous prime is 990412214087. The next prime is 990412214137.

990412214099 is nontrivially palindromic in base 10.

It is a de Polignac number, because none of the positive numbers 2k-990412214099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (990412214699) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 279617714 + ... + 279621255.

It is an arithmetic number, because the mean of its divisors is an integer number (80530411680).

Almost surely, 2990412214099 is an apocalyptic number.

990412214099 is a deficient number, since it is larger than the sum of its proper divisors (298074372781).

990412214099 is a wasteful number, since it uses less digits than its factorization.

990412214099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 559239010.

The product of its (nonzero) digits is 419904, while the sum is 50.

The spelling of 990412214099 in words is "nine hundred ninety billion, four hundred twelve million, two hundred fourteen thousand, ninety-nine".

Divisors: 1 7 11 23 77 161 253 1771 559238969 3914672783 6151628659 12862496287 43061400613 90037474009 141487459157 990412214099