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389046899 = 2693973643
BaseRepresentation
bin10111001100000…
…110001001110011
31000010001122000102
4113030012021303
51244044000044
6102334343015
712432562343
oct2714061163
91003048012
10389046899
1118a67476a
12aa35aa6b
13627a7c87
1439952d23
152424d24e
hex17306273

389046899 has 8 divisors (see below), whose sum is σ = 391584240. Its totient is φ = 386518176.

The previous prime is 389046893. The next prime is 389046937. The reversal of 389046899 is 998640983.

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 389046899 - 24 = 389046883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (389046893) 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, 104972 + ... + 108614.

It is an arithmetic number, because the mean of its divisors is an integer number (48948030).

Almost surely, 2389046899 is an apocalyptic number.

389046899 is a deficient number, since it is larger than the sum of its proper divisors (2537341).

389046899 is a wasteful number, since it uses less digits than its factorization.

389046899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4309.

The product of its (nonzero) digits is 3359232, while the sum is 56.

The square root of 389046899 is about 19724.2718243285. The cubic root of 389046899 is about 730.0187015913.

The spelling of 389046899 in words is "three hundred eighty-nine million, forty-six thousand, eight hundred ninety-nine".

Divisors: 1 269 397 3643 106793 979967 1446271 389046899