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1530028220399 = 7238019183457
BaseRepresentation
bin10110010000111100110…
…010011101111111101111
312102021021022000210012122
4112100330302131333233
5200031444211023044
63130515114423155
7215353345201430
oct26207462357757
95367238023178
101530028220399
1153a977051868
12208643431abb
13b13865ac663
14540a773d487
1529bed6e9dee
hex1643cc9dfef

1530028220399 has 8 divisors (see below), whose sum is σ = 1748677338528. Its totient is φ = 1311397516800.

The previous prime is 1530028220389. The next prime is 1530028220453. The reversal of 1530028220399 is 9930228200351.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1530028220399 - 220 = 1530027171823 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1530028220339) 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, 4425122 + ... + 4758335.

It is an arithmetic number, because the mean of its divisors is an integer number (218584667316).

Almost surely, 21530028220399 is an apocalyptic number.

1530028220399 is a deficient number, since it is larger than the sum of its proper divisors (218649118129).

1530028220399 is an equidigital number, since it uses as much as digits as its factorization.

1530028220399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9207265.

The product of its (nonzero) digits is 233280, while the sum is 44.

The spelling of 1530028220399 in words is "one trillion, five hundred thirty billion, twenty-eight million, two hundred twenty thousand, three hundred ninety-nine".

Divisors: 1 7 23801 166607 9183457 64284199 218575460057 1530028220399