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999903473 is a prime number
BaseRepresentation
bin111011100110010…
…101000011110001
32120200111100200222
4323212111003301
54021433402343
6243115222425
733531016322
oct7346250361
92520440628
10999903473
11473468308
1223aa47a15
1312c20527a
1496b24449
155cbb2a68
hex3b9950f1

999903473 has 2 divisors, whose sum is σ = 999903474. Its totient is φ = 999903472.

The previous prime is 999903391. The next prime is 999903479. The reversal of 999903473 is 374309999.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 804686689 + 195216784 = 28367^2 + 13972^2 .

It is a cyclic number.

It is not a de Polignac number, because 999903473 - 28 = 999903217 is a prime.

It is not a weakly prime, because it can be changed into another prime (999903479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499951736 + 499951737.

It is an arithmetic number, because the mean of its divisors is an integer number (499951737).

Almost surely, 2999903473 is an apocalyptic number.

It is an amenable number.

999903473 is a deficient number, since it is larger than the sum of its proper divisors (1).

999903473 is an equidigital number, since it uses as much as digits as its factorization.

999903473 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1653372, while the sum is 53.

The square root of 999903473 is about 31621.2503389730. The cubic root of 999903473 is about 999.9678232980.

The spelling of 999903473 in words is "nine hundred ninety-nine million, nine hundred three thousand, four hundred seventy-three".