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7228560 = 243530119
BaseRepresentation
bin11011100100110010010000
3111121020201110
4123210302100
53322303220
6414533320
7115304343
oct33446220
914536643
107228560
114097a19
122507240
131661271
14d6245a
1597bbe0
hex6e4c90

7228560 has 40 divisors (see below), whose sum is σ = 22409280. Its totient is φ = 1927552.

The previous prime is 7228547. The next prime is 7228567. The reversal of 7228560 is 658227.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (7228567) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14820 + ... + 15299.

It is an arithmetic number, because the mean of its divisors is an integer number (560232).

Almost surely, 27228560 is an apocalyptic number.

It is an amenable number.

7228560 is an abundant number, since it is smaller than the sum of its proper divisors (15180720).

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

7228560 is a wasteful number, since it uses less digits than its factorization.

7228560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30135 (or 30129 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 7228560 is about 2688.5981477342. The cubic root of 7228560 is about 193.3528583795.

The spelling of 7228560 in words is "seven million, two hundred twenty-eight thousand, five hundred sixty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 40 48 60 80 120 240 30119 60238 90357 120476 150595 180714 240952 301190 361428 451785 481904 602380 722856 903570 1204760 1445712 1807140 2409520 3614280 7228560