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1330720048 = 24721697347
BaseRepresentation
bin100111101010001…
…0010110100110000
310102201222120201201
41033110102310300
510211131020143
6340013540544
744655635200
oct11724226460
93381876651
101330720048
1162317a739
123117a4754
13182902918
14c8a3a400
157bc5c64d
hex4f512d30

1330720048 has 30 divisors (see below), whose sum is σ = 2999213916. Its totient is φ = 570308256.

The previous prime is 1330720021. The next prime is 1330720049. The reversal of 1330720048 is 8400270331.

It is a super-2 number, since 2×13307200482 = 3541631692298244608, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 1330719998 and 1330720025.

It is not an unprimeable number, because it can be changed into a prime (1330720049) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 847890 + ... + 849457.

Almost surely, 21330720048 is an apocalyptic number.

It is an amenable number.

1330720048 is an abundant number, since it is smaller than the sum of its proper divisors (1668493868).

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

1330720048 is a wasteful number, since it uses less digits than its factorization.

1330720048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1697369 (or 1697356 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 1330720048 is about 36479.0357328699. The cubic root of 1330720048 is about 1099.9228728292.

Adding to 1330720048 its reverse (8400270331), we get a palindrome (9730990379).

The spelling of 1330720048 in words is "one billion, three hundred thirty million, seven hundred twenty thousand, forty-eight".

Divisors: 1 2 4 7 8 14 16 28 49 56 98 112 196 392 784 1697347 3394694 6789388 11881429 13578776 23762858 27157552 47525716 83170003 95051432 166340006 190102864 332680012 665360024 1330720048