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3628387 = 7518341
BaseRepresentation
bin1101110101110101100011
320211100012201
431311311203
51412102022
6205434031
742561250
oct15656543
96740181
103628387
112059074
12126b917
139a0699
146a6427
154ba127
hex375d63

3628387 has 4 divisors (see below), whose sum is σ = 4146736. Its totient is φ = 3110040.

The previous prime is 3628363. The next prime is 3628397. The reversal of 3628387 is 7838263.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7838263 = 67116989.

It is a cyclic number.

It is not a de Polignac number, because 3628387 - 211 = 3626339 is a prime.

It is a d-powerful number, because it can be written as 310 + 68 + 214 + 82 + 313 + 86 + 75 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3628337) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 259164 + ... + 259177.

It is an arithmetic number, because the mean of its divisors is an integer number (1036684).

Almost surely, 23628387 is an apocalyptic number.

3628387 is a deficient number, since it is larger than the sum of its proper divisors (518349).

3628387 is an equidigital number, since it uses as much as digits as its factorization.

3628387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 518348.

The product of its digits is 48384, while the sum is 37.

The square root of 3628387 is about 1904.8325385713. The cubic root of 3628387 is about 153.6636697802.

The spelling of 3628387 in words is "three million, six hundred twenty-eight thousand, three hundred eighty-seven".

Divisors: 1 7 518341 3628387