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2887696947 = 31368770327
BaseRepresentation
bin1010110000011110…
…1100001000110011
321110020201012111210
42230013230020303
521403222300242
61154313211203
7131363006352
oct25407541063
97406635453
102887696947
111252036503
12687100b03
13370353b25
141d5731999
1511d7add9c
hexac1ec233

2887696947 has 8 divisors (see below), whose sum is σ = 3850598656. Its totient is φ = 1924963272.

The previous prime is 2887696939. The next prime is 2887696957. The reversal of 2887696947 is 7496967882.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2887696947 - 23 = 2887696939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2887696927) 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, 5898 + ... + 76224.

It is an arithmetic number, because the mean of its divisors is an integer number (481324832).

Almost surely, 22887696947 is an apocalyptic number.

2887696947 is a deficient number, since it is larger than the sum of its proper divisors (962901709).

2887696947 is a wasteful number, since it uses less digits than its factorization.

2887696947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84017.

The product of its digits is 73156608, while the sum is 66.

The square root of 2887696947 is about 53737.2956800024. The cubic root of 2887696947 is about 1424.0236582030.

The spelling of 2887696947 in words is "two billion, eight hundred eighty-seven million, six hundred ninety-six thousand, nine hundred forty-seven".

Divisors: 1 3 13687 41061 70327 210981 962565649 2887696947