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2865868023 = 36116219661
BaseRepresentation
bin1010101011010001…
…1010110011110111
321101201122011212010
42222310122303313
521332130234043
61152213255303
7131006322234
oct25264326367
97351564763
102865868023
111240787077
1267b934533
133689800c5
141d288c78b
1511b8eb133
hexaad1acf7

2865868023 has 16 divisors (see below), whose sum is σ = 3886597472. Its totient is φ = 1877904000.

The previous prime is 2865868013. The next prime is 2865868037. The reversal of 2865868023 is 3208685682.

It is not a de Polignac number, because 2865868023 - 26 = 2865867959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2865868013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 291813 + ... + 301473.

It is an arithmetic number, because the mean of its divisors is an integer number (242912342).

Almost surely, 22865868023 is an apocalyptic number.

2865868023 is a deficient number, since it is larger than the sum of its proper divisors (1020729449).

2865868023 is a wasteful number, since it uses less digits than its factorization.

2865868023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11346.

The product of its (nonzero) digits is 1105920, while the sum is 48.

The square root of 2865868023 is about 53533.8026204005. The cubic root of 2865868023 is about 1420.4263784402.

The spelling of 2865868023 in words is "two billion, eight hundred sixty-five million, eight hundred sixty-eight thousand, twenty-three".

Divisors: 1 3 61 183 1621 4863 9661 28983 98881 296643 589321 1767963 15660481 46981443 955289341 2865868023