Search a number
-
+
7214028 = 223837243
BaseRepresentation
bin11011100001001111001100
3111120111210020
4123201033030
53321322103
6414342140
7115214103
oct33411714
914514706
107214028
114088008
1224ba950
131657773
14d5b03a
15977753
hex6e13cc

7214028 has 24 divisors (see below), whose sum is σ = 17037888. Its totient is φ = 2375376.

The previous prime is 7214027. The next prime is 7214029. The reversal of 7214028 is 8204127.

It is an interprime number because it is at equal distance from previous prime (7214027) and next prime (7214029).

It is a nialpdrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 7213989 and 7214007.

It is not an unprimeable number, because it can be changed into a prime (7214023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2626 + ... + 4617.

It is an arithmetic number, because the mean of its divisors is an integer number (709912).

Almost surely, 27214028 is an apocalyptic number.

It is an amenable number.

7214028 is an abundant number, since it is smaller than the sum of its proper divisors (9823860).

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

7214028 is a wasteful number, since it uses less digits than its factorization.

7214028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7333 (or 7331 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 24.

The square root of 7214028 is about 2685.8942644862. The cubic root of 7214028 is about 193.2232019081.

Subtracting 7214028 from its reverse (8204127), we obtain a palindrome (990099).

The spelling of 7214028 in words is "seven million, two hundred fourteen thousand, twenty-eight".

Divisors: 1 2 3 4 6 12 83 166 249 332 498 996 7243 14486 21729 28972 43458 86916 601169 1202338 1803507 2404676 3607014 7214028