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2957009889 = 33917251639
BaseRepresentation
bin1011000001000000…
…0110001111100001
321122002010122222210
42300100012033201
522023443304024
61205230552333
7133164112041
oct26020061741
97562118883
102957009889
111288178329
126a63686a9
133818119c2
14200a15721
15124901129
hexb04063e1

2957009889 has 8 divisors (see below), whose sum is σ = 3943702080. Its totient is φ = 1970828816.

The previous prime is 2957009863. The next prime is 2957009893. The reversal of 2957009889 is 9889007592.

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 2957009889 - 217 = 2956878817 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2957009819) 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, 114069 + ... + 137570.

It is an arithmetic number, because the mean of its divisors is an integer number (492962760).

Almost surely, 22957009889 is an apocalyptic number.

It is an amenable number.

2957009889 is a deficient number, since it is larger than the sum of its proper divisors (986692191).

2957009889 is a wasteful number, since it uses less digits than its factorization.

2957009889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255559.

The product of its (nonzero) digits is 3265920, while the sum is 57.

The square root of 2957009889 is about 54378.3954250215. The cubic root of 2957009889 is about 1435.3272352419.

The spelling of 2957009889 in words is "two billion, nine hundred fifty-seven million, nine thousand, eight hundred eighty-nine".

Divisors: 1 3 3917 11751 251639 754917 985669963 2957009889