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2212946491 = 71718596189
BaseRepresentation
bin1000001111100110…
…1110001000111011
312201020001022220011
42003321232020323
514013003241431
61003331042351
7105560510020
oct20371561073
95636038804
102212946491
11a361724a8
125191403b7
132936153c2
1416dc8b547
15ce427cb1
hex83e6e23b

2212946491 has 8 divisors (see below), whose sum is σ = 2677851360. Its totient is φ = 1785234048.

The previous prime is 2212946479. The next prime is 2212946497. The reversal of 2212946491 is 1946492122.

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 2212946491 - 217 = 2212815419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2212946497) 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 7 ways as a sum of consecutive naturals, for example, 9297976 + ... + 9298213.

It is an arithmetic number, because the mean of its divisors is an integer number (334731420).

Almost surely, 22212946491 is an apocalyptic number.

2212946491 is a deficient number, since it is larger than the sum of its proper divisors (464904869).

2212946491 is a wasteful number, since it uses less digits than its factorization.

2212946491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18596213.

The product of its digits is 62208, while the sum is 40.

The square root of 2212946491 is about 47041.9652119254. The cubic root of 2212946491 is about 1303.1376852743.

The spelling of 2212946491 in words is "two billion, two hundred twelve million, nine hundred forty-six thousand, four hundred ninety-one".

Divisors: 1 7 17 119 18596189 130173323 316135213 2212946491