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2879963897 = 1729965273
BaseRepresentation
bin1010101110101000…
…1100001011111001
321102201011022202112
42223222030023321
521344232321042
61153435342105
7131240201126
oct25352141371
97381138675
102879963897
111248734558
126845b1935
1336b877065
141d46bb74d
1511cc82982
hexaba8c2f9

2879963897 has 6 divisors (see below), whose sum is σ = 3059339118. Its totient is φ = 2710553984.

The previous prime is 2879963839. The next prime is 2879963899. The reversal of 2879963897 is 7983699782.

It can be written as a sum of positive squares in 3 ways, for example, as 357815056 + 2522148841 = 18916^2 + 50221^2 .

It is not a de Polignac number, because 2879963897 - 210 = 2879962873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2879963899) 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 5 ways as a sum of consecutive naturals, for example, 4982348 + ... + 4982925.

It is an arithmetic number, because the mean of its divisors is an integer number (509889853).

Almost surely, 22879963897 is an apocalyptic number.

It is an amenable number.

2879963897 is a deficient number, since it is larger than the sum of its proper divisors (179375221).

2879963897 is an equidigital number, since it uses as much as digits as its factorization.

2879963897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9965307 (or 9965290 counting only the distinct ones).

The product of its digits is 82301184, while the sum is 68.

The square root of 2879963897 is about 53665.2950890983. The cubic root of 2879963897 is about 1422.7513766546.

The spelling of 2879963897 in words is "two billion, eight hundred seventy-nine million, nine hundred sixty-three thousand, eight hundred ninety-seven".

Divisors: 1 17 289 9965273 169409641 2879963897