Search a number
-
+
3875138890 = 257293188939
BaseRepresentation
bin1110011011111001…
…1110110101001010
3101000001202110012121
43212332132311022
530414013421030
61440305401454
7165013065010
oct34676366512
911001673177
103875138890
111709462227
1290193928a
13499ab4cbc
1428a9308b0
1517a30e47a
hexe6f9ed4a

3875138890 has 32 divisors (see below), whose sum is σ = 7998963840. Its totient is φ = 1324077504.

The previous prime is 3875138851. The next prime is 3875138929. The reversal of 3875138890 is 988315783.

It is an interprime number because it is at equal distance from previous prime (3875138851) and next prime (3875138929).

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, 73960 + ... + 114979.

It is an arithmetic number, because the mean of its divisors is an integer number (249967620).

Almost surely, 23875138890 is an apocalyptic number.

3875138890 is an abundant number, since it is smaller than the sum of its proper divisors (4123824950).

3875138890 is a wasteful number, since it uses less digits than its factorization.

3875138890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189246.

The product of its (nonzero) digits is 1451520, while the sum is 52.

The square root of 3875138890 is about 62250.6135712733. The cubic root of 3875138890 is about 1570.7090918364.

The spelling of 3875138890 in words is "three billion, eight hundred seventy-five million, one hundred thirty-eight thousand, eight hundred ninety".

Divisors: 1 2 5 7 10 14 35 70 293 586 1465 2051 2930 4102 10255 20510 188939 377878 944695 1322573 1889390 2645146 6612865 13225730 55359127 110718254 276795635 387513889 553591270 775027778 1937569445 3875138890