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3871425 = 352411259
BaseRepresentation
bin1110110001001011000001
321021200121010
432301023001
51442341200
6214551133
744622645
oct16611301
97250533
103871425
112204728
1213684a9
13a571ac
1472ac25
15517150
hex3b12c1

3871425 has 24 divisors (see below), whose sum is σ = 6562080. Its totient is φ = 2012800.

The previous prime is 3871423. The next prime is 3871433. The reversal of 3871425 is 5241783.

It is not a de Polignac number, because 3871425 - 21 = 3871423 is a prime.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 3871392 and 3871401.

It is not an unprimeable number, because it can be changed into a prime (3871423) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2446 + ... + 3704.

It is an arithmetic number, because the mean of its divisors is an integer number (273420).

Almost surely, 23871425 is an apocalyptic number.

It is an amenable number.

3871425 is a deficient number, since it is larger than the sum of its proper divisors (2690655).

3871425 is a wasteful number, since it uses less digits than its factorization.

3871425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1313 (or 1308 counting only the distinct ones).

The product of its digits is 6720, while the sum is 30.

The square root of 3871425 is about 1967.5937080607. The cubic root of 3871425 is about 157.0207148077.

The spelling of 3871425 in words is "three million, eight hundred seventy-one thousand, four hundred twenty-five".

Divisors: 1 3 5 15 25 41 75 123 205 615 1025 1259 3075 3777 6295 18885 31475 51619 94425 154857 258095 774285 1290475 3871425