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7142372 = 221785593
BaseRepresentation
bin11011001111101111100100
3111102212111022
4123033233210
53312023442
6413030312
7114465146
oct33175744
914385438
107142372
114039196
122485398
131630c73
14d3cc96
159613d2
hex6cfbe4

7142372 has 6 divisors (see below), whose sum is σ = 12499158. Its totient is φ = 3571184.

The previous prime is 7142371. The next prime is 7142383. The reversal of 7142372 is 2732417.

It can be written as a sum of positive squares in only one way, i.e., 6270016 + 872356 = 2504^2 + 934^2 .

It is a d-powerful number, because it can be written as 72 + 1 + 49 + 23 + 314 + 72 + 221 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7142371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 892793 + ... + 892800.

It is an arithmetic number, because the mean of its divisors is an integer number (2083193).

Almost surely, 27142372 is an apocalyptic number.

It is an amenable number.

7142372 is a deficient number, since it is larger than the sum of its proper divisors (5356786).

7142372 is a wasteful number, since it uses less digits than its factorization.

7142372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1785597 (or 1785595 counting only the distinct ones).

The product of its digits is 2352, while the sum is 26.

The square root of 7142372 is about 2672.5216556653. The cubic root of 7142372 is about 192.5813183169.

Adding to 7142372 its reverse (2732417), we get a palindrome (9874789).

The spelling of 7142372 in words is "seven million, one hundred forty-two thousand, three hundred seventy-two".

Divisors: 1 2 4 1785593 3571186 7142372