Search a number
-
+
3287028 = 223273919
BaseRepresentation
bin1100100010011111110100
320011222221210
430202133310
51320141103
6154241420
736640113
oct14423764
96158853
103287028
111945658
121126270
138b11b4
14617c7a
1544de03
hex3227f4

3287028 has 12 divisors (see below), whose sum is σ = 7669760. Its totient is φ = 1095672.

The previous prime is 3287027. The next prime is 3287029. The reversal of 3287028 is 8207823.

It is an interprime number because it is at equal distance from previous prime (3287027) and next prime (3287029).

It is a tau number, because it is divible by the number of its divisors (12).

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 3286986 and 3287004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3287027) 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, 136948 + ... + 136971.

Almost surely, 23287028 is an apocalyptic number.

It is an amenable number.

3287028 is an abundant number, since it is smaller than the sum of its proper divisors (4382732).

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

3287028 is a wasteful number, since it uses less digits than its factorization.

3287028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273926 (or 273924 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 3287028 is about 1813.0162713004. The cubic root of 3287028 is about 148.6852204808.

The spelling of 3287028 in words is "three million, two hundred eighty-seven thousand, twenty-eight".

Divisors: 1 2 3 4 6 12 273919 547838 821757 1095676 1643514 3287028