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3889960 = 235791231
BaseRepresentation
bin1110110101101100101000
321022122000121
432311230220
51443434320
6215213024
745030664
oct16655450
97278017
103889960
112217648
121377174
13a62769
147338a4
1551c8aa
hex3b5b28

3889960 has 32 divisors (see below), whose sum is σ = 8870400. Its totient is φ = 1535040.

The previous prime is 3889939. The next prime is 3889969. The reversal of 3889960 is 699883.

It is not an unprimeable number, because it can be changed into a prime (3889969) 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, 2545 + ... + 3775.

It is an arithmetic number, because the mean of its divisors is an integer number (277200).

Almost surely, 23889960 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3889960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4435200).

3889960 is an abundant number, since it is smaller than the sum of its proper divisors (4980440).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3889960 is a wasteful number, since it uses less digits than its factorization.

3889960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1321 (or 1317 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 43.

The square root of 3889960 is about 1972.2981519030. The cubic root of 3889960 is about 157.2709023265.

It can be divided in two parts, 38 and 89960, that added together give a palindrome (89998).

The spelling of 3889960 in words is "three million, eight hundred eighty-nine thousand, nine hundred sixty".

Divisors: 1 2 4 5 8 10 20 40 79 158 316 395 632 790 1231 1580 2462 3160 4924 6155 9848 12310 24620 49240 97249 194498 388996 486245 777992 972490 1944980 3889960