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3628231 = 14292539
BaseRepresentation
bin1101110101110011000111
320211022222221
431311303013
51412100411
6205433211
742560635
oct15656307
96738887
103628231
112058a42
12126b807
139a05a9
146a6355
154ba071
hex375cc7

3628231 has 4 divisors (see below), whose sum is σ = 3632200. Its totient is φ = 3624264.

The previous prime is 3628201. The next prime is 3628243. The reversal of 3628231 is 1328263.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1328263 = 3735899.

It is a cyclic number.

It is not a de Polignac number, because 3628231 - 25 = 3628199 is a prime.

It is a super-2 number, since 2×36282312 = 26328120378722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3628196 and 3628205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3628201) 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, 160 + ... + 2698.

It is an arithmetic number, because the mean of its divisors is an integer number (908050).

Almost surely, 23628231 is an apocalyptic number.

3628231 is a deficient number, since it is larger than the sum of its proper divisors (3969).

3628231 is a wasteful number, since it uses less digits than its factorization.

3628231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3968.

The product of its digits is 1728, while the sum is 25.

The square root of 3628231 is about 1904.7915896496. The cubic root of 3628231 is about 153.6614675274.

Subtracting from 3628231 its reverse (1328263), we obtain a cube (2299968 = 1323).

The spelling of 3628231 in words is "three million, six hundred twenty-eight thousand, two hundred thirty-one".

Divisors: 1 1429 2539 3628231