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405013521510030 = 23514347940994683
BaseRepresentation
bin101110000010110111000111…
…1000101000010111010001110
31222010000220200200111010021210
41130011232033011002322032
5411041220143001310110
63553220350532235250
7151211155424424516
oct13405561705027216
91863026620433253
10405013521510030
111080602a7236834
1239512400a6bb26
13144cb7c3a5a614
147202a8ab10846
1531c54e7968520
hex1705b8f142e8e

405013521510030 has 32 divisors (see below), whose sum is σ = 972100204274304. Its totient is φ = 107996077663776.

The previous prime is 405013521510011. The next prime is 405013521510047. The reversal of 405013521510030 is 30015125310504.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a self number, because there is not a number n which added to its sum of digits gives 405013521510030.

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, 470066932 + ... + 470927751.

It is an arithmetic number, because the mean of its divisors is an integer number (30378131383572).

Almost surely, 2405013521510030 is an apocalyptic number.

405013521510030 is an abundant number, since it is smaller than the sum of its proper divisors (567086682764274).

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

405013521510030 is a wasteful number, since it uses less digits than its factorization.

405013521510030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 941009040.

The product of its (nonzero) digits is 9000, while the sum is 30.

Adding to 405013521510030 its reverse (30015125310504), we get a palindrome (435028646820534).

The spelling of 405013521510030 in words is "four hundred five trillion, thirteen billion, five hundred twenty-one million, five hundred ten thousand, thirty".

Divisors: 1 2 3 5 6 10 15 30 14347 28694 43041 71735 86082 143470 215205 430410 940994683 1881989366 2822984049 4704973415 5645968098 9409946830 14114920245 28229840490 13500450717001 27000901434002 40501352151003 67502253585005 81002704302006 135004507170010 202506760755015 405013521510030