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1530213115 = 52391914479
BaseRepresentation
bin101101100110101…
…0011001011111011
310221122100212202211
41123031103023323
511113213304430
6411501435551
752630411504
oct13315231373
93848325684
101530213115
11715846842
1236856bbb7
131b5040262
14107329bab
158e51672a
hex5b3532fb

1530213115 has 16 divisors (see below), whose sum is σ = 1918310400. Its totient is φ = 1169590752.

The previous prime is 1530213109. The next prime is 1530213119. The reversal of 1530213115 is 5113120351.

It is a cyclic number.

It is not a de Polignac number, because 1530213115 - 27 = 1530212987 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1530213119) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 98446 + ... + 112924.

It is an arithmetic number, because the mean of its divisors is an integer number (119894400).

Almost surely, 21530213115 is an apocalyptic number.

1530213115 is a deficient number, since it is larger than the sum of its proper divisors (388097285).

1530213115 is a wasteful number, since it uses less digits than its factorization.

1530213115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15426.

The product of its (nonzero) digits is 450, while the sum is 22.

The square root of 1530213115 is about 39117.9385320853. The cubic root of 1530213115 is about 1152.3488514268.

Adding to 1530213115 its reverse (5113120351), we get a palindrome (6643333466).

The spelling of 1530213115 in words is "one billion, five hundred thirty million, two hundred thirteen thousand, one hundred fifteen".

Divisors: 1 5 23 115 919 4595 14479 21137 72395 105685 333017 1665085 13306201 66531005 306042623 1530213115