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7028145 = 325473323
BaseRepresentation
bin11010110011110110110001
3111020001210200
4122303312301
53244400040
6410345413
7113511135
oct32636661
914201720
107028145
113a70393
12242b269
1315c0c87
14d0d3c5
1593c630
hex6b3db1

7028145 has 24 divisors (see below), whose sum is σ = 12445056. Its totient is φ = 3667488.

The previous prime is 7028141. The next prime is 7028167. The reversal of 7028145 is 5418207.

It is not a de Polignac number, because 7028145 - 22 = 7028141 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7028141) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 454 + ... + 3776.

It is an arithmetic number, because the mean of its divisors is an integer number (518544).

Almost surely, 27028145 is an apocalyptic number.

It is an amenable number.

7028145 is a deficient number, since it is larger than the sum of its proper divisors (5416911).

7028145 is a wasteful number, since it uses less digits than its factorization.

7028145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3381 (or 3378 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 7028145 is about 2651.0648803830. The cubic root of 7028145 is about 191.5491537592.

The spelling of 7028145 in words is "seven million, twenty-eight thousand, one hundred forty-five".

Divisors: 1 3 5 9 15 45 47 141 235 423 705 2115 3323 9969 16615 29907 49845 149535 156181 468543 780905 1405629 2342715 7028145