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2031100219 = 48713073191
BaseRepresentation
bin111100100010000…
…0010000100111011
312020112212120201001
41321010002010323
513124430201334
6533313305431
7101222031661
oct17104020473
95215776631
102031100219
11952559725
12488265277
13264a46065
14153a72c31
15bd4a7714
hex7910213b

2031100219 has 8 divisors (see below), whose sum is σ = 2037466368. Its totient is φ = 2024744040.

The previous prime is 2031100199. The next prime is 2031100229. The reversal of 2031100219 is 9120011302.

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 2031100219 - 27 = 2031100091 is a prime.

It is a super-2 number, since 2×20311002192 = 8250736199243695922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2031100196 and 2031100205.

It is not an unprimeable number, because it can be changed into a prime (2031100229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 634914 + ... + 638104.

It is an arithmetic number, because the mean of its divisors is an integer number (254683296).

Almost surely, 22031100219 is an apocalyptic number.

2031100219 is a deficient number, since it is larger than the sum of its proper divisors (6366149).

2031100219 is a wasteful number, since it uses less digits than its factorization.

2031100219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4985.

The product of its (nonzero) digits is 108, while the sum is 19.

The square root of 2031100219 is about 45067.7292416647. The cubic root of 2031100219 is about 1266.4181253888.

The spelling of 2031100219 in words is "two billion, thirty-one million, one hundred thousand, two hundred nineteen".

Divisors: 1 487 1307 3191 636509 1554017 4170637 2031100219