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7142193 = 321746681
BaseRepresentation
bin11011001111101100110001
3111102212020200
4123033230301
53312022233
6413025413
7114464502
oct33175461
914385220
107142193
114039043
122485269
131630b66
14d3cba9
15961313
hex6cfb31

7142193 has 12 divisors (see below), whose sum is σ = 10923588. Its totient is φ = 4481280.

The previous prime is 7142189. The next prime is 7142203. The reversal of 7142193 is 3912417.

7142193 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 6640929 + 501264 = 2577^2 + 708^2 .

It is not a de Polignac number, because 7142193 - 22 = 7142189 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7142173) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23188 + ... + 23493.

It is an arithmetic number, because the mean of its divisors is an integer number (910299).

Almost surely, 27142193 is an apocalyptic number.

It is an amenable number.

7142193 is a deficient number, since it is larger than the sum of its proper divisors (3781395).

7142193 is a wasteful number, since it uses less digits than its factorization.

7142193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46704 (or 46701 counting only the distinct ones).

The product of its digits is 1512, while the sum is 27.

The square root of 7142193 is about 2672.4881664846. The cubic root of 7142193 is about 192.5797094983.

The spelling of 7142193 in words is "seven million, one hundred forty-two thousand, one hundred ninety-three".

Divisors: 1 3 9 17 51 153 46681 140043 420129 793577 2380731 7142193