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30713000 = 235330713
BaseRepresentation
bin111010100101…
…0010010101000
32010210101022112
41311022102220
530330304000
63014141452
7522025163
oct165122250
963711275
1030713000
111637814a
12a351888
136494696
144116ada
152a6a235
hex1d4a4a8

30713000 has 32 divisors (see below), whose sum is σ = 71870760. Its totient is φ = 12284800.

The previous prime is 30712963. The next prime is 30713017. The reversal of 30713000 is 31703.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 15952036 + 14760964 = 3994^2 + 3842^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14357 + ... + 16356.

Almost surely, 230713000 is an apocalyptic number.

It is an amenable number.

30713000 is an abundant number, since it is smaller than the sum of its proper divisors (41157760).

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

30713000 is a wasteful number, since it uses less digits than its factorization.

30713000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30734 (or 30720 counting only the distinct ones).

The product of its (nonzero) digits is 63, while the sum is 14.

The square root of 30713000 is about 5541.9310713866. The cubic root of 30713000 is about 313.1656212282.

Adding to 30713000 its reverse (31703), we get a palindrome (30744703).

The spelling of 30713000 in words is "thirty million, seven hundred thirteen thousand".

Divisors: 1 2 4 5 8 10 20 25 40 50 100 125 200 250 500 1000 30713 61426 122852 153565 245704 307130 614260 767825 1228520 1535650 3071300 3839125 6142600 7678250 15356500 30713000