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30534220015 = 5132931603267
BaseRepresentation
bin11100011011111110…
…110011100011101111
32220210222112002110121
4130123332303203233
51000013230020030
622005514145411
72130444405415
oct343376634357
986728462417
1030534220015
1111a49853482
125b01a22267
132b57c6bc10
14169938b2b5
15bda9a147a
hex71bfb38ef

30534220015 has 16 divisors (see below), whose sum is σ = 39594306528. Its totient is φ = 22471376256.

The previous prime is 30534220001. The next prime is 30534220033. The reversal of 30534220015 is 51002243503.

It is a cyclic number.

It is not a de Polignac number, because 30534220015 - 229 = 29997349103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 782589 + ... + 820678.

It is an arithmetic number, because the mean of its divisors is an integer number (2474644158).

Almost surely, 230534220015 is an apocalyptic number.

30534220015 is a deficient number, since it is larger than the sum of its proper divisors (9060086513).

30534220015 is a wasteful number, since it uses less digits than its factorization.

30534220015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1603578.

The product of its (nonzero) digits is 3600, while the sum is 25.

Adding to 30534220015 its reverse (51002243503), we get a palindrome (81536463518).

The spelling of 30534220015 in words is "thirty billion, five hundred thirty-four million, two hundred twenty thousand, fifteen".

Divisors: 1 5 13 65 293 1465 3809 19045 1603267 8016335 20842471 104212355 469757231 2348786155 6106844003 30534220015