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30541220515 = 5132938941651
BaseRepresentation
bin11100011100011001…
…100000101010100011
32220211110200202100101
4130130121200222203
51000022023024030
622010324203231
72130561043141
oct343431405243
986743622311
1030541220515
1111a527a5013
125b04239517
132b59550420
14169a290591
15bdb3d57ca
hex71c660aa3

30541220515 has 32 divisors (see below), whose sum is σ = 40935585600. Its totient is φ = 21719308800.

The previous prime is 30541220449. The next prime is 30541220533. The reversal of 30541220515 is 51502214503.

It is not a de Polignac number, because 30541220515 - 217 = 30541089443 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 712440 + ... + 754090.

It is an arithmetic number, because the mean of its divisors is an integer number (1279237050).

Almost surely, 230541220515 is an apocalyptic number.

30541220515 is a deficient number, since it is larger than the sum of its proper divisors (10394365085).

30541220515 is a wasteful number, since it uses less digits than its factorization.

30541220515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42087.

The product of its (nonzero) digits is 6000, while the sum is 28.

The spelling of 30541220515 in words is "thirty billion, five hundred forty-one million, two hundred twenty thousand, five hundred fifteen".

Divisors: 1 5 13 29 65 145 377 389 1885 1945 5057 11281 25285 41651 56405 146653 208255 541463 733265 1207879 2707315 6039395 15702427 16202239 78512135 81011195 210629107 469864931 1053145535 2349324655 6108244103 30541220515