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999899377 = 1997542539
BaseRepresentation
bin111011100110010…
…100000011110001
32120200111011002021
4323212110003301
54021433240002
6243115151441
733531001351
oct7346240361
92520434067
10999899377
11473465224
1223aa45581
1312c203449
1496b22b61
155cbb1737
hex3b9940f1

999899377 has 8 divisors (see below), whose sum is σ = 1063378400. Its totient is φ = 937505664.

The previous prime is 999899333. The next prime is 999899399. The reversal of 999899377 is 773998999.

999899377 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 999899377 - 211 = 999897329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (999899077) 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, 269427 + ... + 273112.

It is an arithmetic number, because the mean of its divisors is an integer number (132922300).

Almost surely, 2999899377 is an apocalyptic number.

999899377 is a gapful number since it is divisible by the number (97) formed by its first and last digit.

999899377 is the 18257-th hex number.

It is an amenable number.

999899377 is a deficient number, since it is larger than the sum of its proper divisors (63479023).

999899377 is a wasteful number, since it uses less digits than its factorization.

999899377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 542655.

The product of its digits is 69441624, while the sum is 70.

The square root of 999899377 is about 31621.1855723343. The cubic root of 999899377 is about 999.9664578749.

The spelling of 999899377 in words is "nine hundred ninety-nine million, eight hundred ninety-nine thousand, three hundred seventy-seven".

Divisors: 1 19 97 1843 542539 10308241 52626283 999899377