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2108984819 = 19731520537
BaseRepresentation
bin111110110110100…
…1000110111110011
312102222102112021212
41331231020313303
513304400003234
6545134510335
7103156034534
oct17555106763
95388375255
102108984819
11992515567
124aa3653ab
13277c15616
1416014868b
15c523e5ce
hex7db48df3

2108984819 has 8 divisors (see below), whose sum is σ = 2250396240. Its totient is φ = 1970614656.

The previous prime is 2108984809. The next prime is 2108984831. The reversal of 2108984819 is 9184898012.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2108984819 - 216 = 2108919283 is a prime.

It is a super-2 number, since 2×21089848192 = 8895633933544925522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2108984809) 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, 758882 + ... + 761655.

It is an arithmetic number, because the mean of its divisors is an integer number (281299530).

Almost surely, 22108984819 is an apocalyptic number.

2108984819 is a deficient number, since it is larger than the sum of its proper divisors (141411421).

2108984819 is a wasteful number, since it uses less digits than its factorization.

2108984819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1520629.

The product of its (nonzero) digits is 331776, while the sum is 50.

The square root of 2108984819 is about 45923.6847280355. The cubic root of 2108984819 is about 1282.4028795610.

The spelling of 2108984819 in words is "two billion, one hundred eight million, nine hundred eighty-four thousand, eight hundred nineteen".

Divisors: 1 19 73 1387 1520537 28890203 110999201 2108984819