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1530641706 = 231123191541
BaseRepresentation
bin101101100111011…
…1011110100101010
310221200011122200120
41123032323310222
511113321013311
6411514544110
752634145156
oct13316736452
93850148616
101530641706
11716009850
12368738036
131b5160369
141073dc066
158e59d706
hex5b3bbd2a

1530641706 has 16 divisors (see below), whose sum is σ = 3339582048. Its totient is φ = 463830800.

The previous prime is 1530641689. The next prime is 1530641711. The reversal of 1530641706 is 6071460351.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11595705 + ... + 11595836.

It is an arithmetic number, because the mean of its divisors is an integer number (208723878).

Almost surely, 21530641706 is an apocalyptic number.

1530641706 is an abundant number, since it is smaller than the sum of its proper divisors (1808940342).

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

1530641706 is a wasteful number, since it uses less digits than its factorization.

1530641706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23191557.

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 1530641706 is about 39123.4163385561. The cubic root of 1530641706 is about 1152.4564269095.

The spelling of 1530641706 in words is "one billion, five hundred thirty million, six hundred forty-one thousand, seven hundred six".

Divisors: 1 2 3 6 11 22 33 66 23191541 46383082 69574623 139149246 255106951 510213902 765320853 1530641706