Search a number
-
+
7031142 = 232974027
BaseRepresentation
bin11010110100100101100110
3111020012220200
4122310211212
53244444032
6410411330
7113522646
oct32644546
914205820
107031142
113a72668
122430b46
1315c2451
14d10526
1593d47c
hex6b4966

7031142 has 24 divisors (see below), whose sum is σ = 15395016. Its totient is φ = 2318976.

The previous prime is 7031113. The next prime is 7031173. The reversal of 7031142 is 2411307.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 268 + ... + 3759.

It is an arithmetic number, because the mean of its divisors is an integer number (641459).

Almost surely, 27031142 is an apocalyptic number.

7031142 is an abundant number, since it is smaller than the sum of its proper divisors (8363874).

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

7031142 is a wasteful number, since it uses less digits than its factorization.

7031142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4132 (or 4129 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 7031142 is about 2651.6300646961. The cubic root of 7031142 is about 191.5763772173.

Adding to 7031142 its reverse (2411307), we get a palindrome (9442449).

The spelling of 7031142 in words is "seven million, thirty-one thousand, one hundred forty-two".

Divisors: 1 2 3 6 9 18 97 194 291 582 873 1746 4027 8054 12081 24162 36243 72486 390619 781238 1171857 2343714 3515571 7031142