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42878013430 = 25710915793559
BaseRepresentation
bin100111111011101110…
…101000111111110110
311002200020112202201111
4213323232220333312
51200303232412210
631410424345234
73045362046340
oct477356507766
9132606482644
1042878013430
111720358013a
12838791521a
1340743c58a5
14210a8dc290
1511ae4d188a
hex9fbba8ff6

42878013430 has 64 divisors (see below), whose sum is σ = 89096832000. Its totient is φ = 14552846208.

The previous prime is 42878013427. The next prime is 42878013443. The reversal of 42878013430 is 3431087824.

It is a congruent number.

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, 12045991 + ... + 12049549.

It is an arithmetic number, because the mean of its divisors is an integer number (1392138000).

Almost surely, 242878013430 is an apocalyptic number.

42878013430 is an abundant number, since it is smaller than the sum of its proper divisors (46218818570).

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

42878013430 is a wasteful number, since it uses less digits than its factorization.

42878013430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5261.

The product of its (nonzero) digits is 129024, while the sum is 40.

The spelling of 42878013430 in words is "forty-two billion, eight hundred seventy-eight million, thirteen thousand, four hundred thirty".

Divisors: 1 2 5 7 10 14 35 70 109 218 545 763 1090 1526 1579 3158 3559 3815 7118 7630 7895 11053 15790 17795 22106 24913 35590 49826 55265 110530 124565 172111 249130 344222 387931 775862 860555 1204777 1721110 1939655 2409554 2715517 3879310 5431034 5619661 6023885 11239322 12047770 13577585 27155170 28098305 39337627 56196610 78675254 196688135 393376270 612543049 1225086098 3062715245 4287801343 6125430490 8575602686 21439006715 42878013430