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3872810005 = 531173144427
BaseRepresentation
bin1110011011010110…
…0110010000010101
3100222220101010120121
43212311212100111
530412414410010
61440143431541
7164654225161
oct34665462025
910886333517
103872810005
111708111529
12900bb55b1
1349947ac6c
1428a4c5ca1
15179eee3da
hexe6d66415

3872810005 has 16 divisors (see below), whose sum is σ = 4825050624. Its totient is φ = 2980952640.

The previous prime is 3872809981. The next prime is 3872810041. The reversal of 3872810005 is 5000182783.

3872810005 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3872810005 - 213 = 3872801813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45399 + ... + 99028.

It is an arithmetic number, because the mean of its divisors is an integer number (301565664).

Almost surely, 23872810005 is an apocalyptic number.

It is an amenable number.

3872810005 is a deficient number, since it is larger than the sum of its proper divisors (952240619).

3872810005 is a wasteful number, since it uses less digits than its factorization.

3872810005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144636.

The product of its (nonzero) digits is 13440, while the sum is 34.

The square root of 3872810005 is about 62231.9050407426. The cubic root of 3872810005 is about 1570.3943733202.

Adding to 3872810005 its reverse (5000182783), we get a palindrome (8872992788).

The spelling of 3872810005 in words is "three billion, eight hundred seventy-two million, eight hundred ten thousand, five".

Divisors: 1 5 31 155 173 865 5363 26815 144427 722135 4477237 22386185 24985871 124929355 774562001 3872810005