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7213142 = 231116341
BaseRepresentation
bin11011100001000001010110
3111120110120102
4123201001112
53321310032
6414334102
7115211366
oct33410126
914513512
107213142
114087382
1224ba332
131657241
14d5a9a6
15977362
hex6e1056

7213142 has 8 divisors (see below), whose sum is σ = 11168832. Its totient is φ = 3490200.

The previous prime is 7213139. The next prime is 7213169. The reversal of 7213142 is 2413127.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58109 + ... + 58232.

It is an arithmetic number, because the mean of its divisors is an integer number (1396104).

Almost surely, 27213142 is an apocalyptic number.

7213142 is a deficient number, since it is larger than the sum of its proper divisors (3955690).

7213142 is a wasteful number, since it uses less digits than its factorization.

7213142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116374.

The product of its digits is 336, while the sum is 20.

The square root of 7213142 is about 2685.7293236661. The cubic root of 7213142 is about 193.2152912667.

Adding to 7213142 its reverse (2413127), we get a palindrome (9626269).

The spelling of 7213142 in words is "seven million, two hundred thirteen thousand, one hundred forty-two".

Divisors: 1 2 31 62 116341 232682 3606571 7213142