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7140252 = 2237167509
BaseRepresentation
bin11011001111001110011100
3111102202120210
4123033032130
53311442002
6413012420
7114456030
oct33171634
914382523
107140252
114037639
122484110
131630002
14d3c1c0
1596096c
hex6cf39c

7140252 has 48 divisors (see below), whose sum is σ = 19192320. Its totient is φ = 2023872.

The previous prime is 7140251. The next prime is 7140253. The reversal of 7140252 is 2520417.

7140252 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (7140251) and next prime (7140253).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7140251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13774 + ... + 14282.

It is an arithmetic number, because the mean of its divisors is an integer number (399840).

Almost surely, 27140252 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7140252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9596160).

7140252 is an abundant number, since it is smaller than the sum of its proper divisors (12052068).

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

7140252 is a wasteful number, since it uses less digits than its factorization.

7140252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 690 (or 688 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 21.

The square root of 7140252 is about 2672.1249970763. The cubic root of 7140252 is about 192.5622624255.

Adding to 7140252 its reverse (2520417), we get a palindrome (9660669).

The spelling of 7140252 in words is "seven million, one hundred forty thousand, two hundred fifty-two".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 167 334 501 509 668 1002 1018 1169 1527 2004 2036 2338 3054 3507 3563 4676 6108 7014 7126 10689 14028 14252 21378 42756 85003 170006 255009 340012 510018 595021 1020036 1190042 1785063 2380084 3570126 7140252