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3810001 = 1337892
BaseRepresentation
bin1110100010001011010001
321011120100011
432202023101
51433410001
6213354521
744245606
oct16421321
97146304
103810001
112172568
121338a41
13a35250
147126ad
15503d51
hex3a22d1

3810001 has 12 divisors (see below), whose sum is σ = 4261852. Its totient is φ = 3383424.

The previous prime is 3809987. The next prime is 3810017. The reversal of 3810001 is 1000183.

It can be written as a sum of positive squares in 6 ways, for example, as 331776 + 3478225 = 576^2 + 1865^2 .

It is not a de Polignac number, because 3810001 - 29 = 3809489 is a prime.

It is a super-2 number, since 2×38100012 = 29032215240002, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is an Ulam number.

It is a Duffinian number.

3810001 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3810031) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 42765 + ... + 42853.

Almost surely, 23810001 is an apocalyptic number.

It is an amenable number.

3810001 is a deficient number, since it is larger than the sum of its proper divisors (451851).

3810001 is an equidigital number, since it uses as much as digits as its factorization.

3810001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228 (or 139 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 3810001 is about 1951.9223857521. The cubic root of 3810001 is about 156.1858539895.

Adding to 3810001 its reverse (1000183), we get a palindrome (4810184).

The spelling of 3810001 in words is "three million, eight hundred ten thousand, one".

Divisors: 1 13 37 89 481 1157 3293 7921 42809 102973 293077 3810001