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7990194952860 = 2235198673670297
BaseRepresentation
bin111010001000101110010…
…1110110101101010011100
31001021212002102110101210020
41310101130232311222130
52021402404401442420
624554351143512140
71453162323331041
oct164213456655234
931255072411706
107990194952860
11260069382419a
12a90678158650
1345c61a414913
141d8a283871c8
15dcc9b266340
hex7445cbb5a9c

7990194952860 has 48 divisors (see below), whose sum is σ = 22372691855136. Its totient is φ = 2130704750592.

The previous prime is 7990194952843. The next prime is 7990194952879. The reversal of 7990194952860 is 682594910997.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11585232 + ... + 12255528.

It is an arithmetic number, because the mean of its divisors is an integer number (466097746982).

Almost surely, 27990194952860 is an apocalyptic number.

It is an amenable number.

7990194952860 is an abundant number, since it is smaller than the sum of its proper divisors (14382496902276).

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

7990194952860 is a wasteful number, since it uses less digits than its factorization.

7990194952860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 868982 (or 868980 counting only the distinct ones).

The product of its (nonzero) digits is 88179840, while the sum is 69.

The spelling of 7990194952860 in words is "seven trillion, nine hundred ninety billion, one hundred ninety-four million, nine hundred fifty-two thousand, eight hundred sixty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 198673 397346 596019 670297 794692 993365 1192038 1340594 1986730 2010891 2384076 2681188 2980095 3351485 3973460 4021782 5960190 6702970 8043564 10054455 11920380 13405940 20108910 40217820 133169915881 266339831762 399509747643 532679663524 665849579405 799019495286 1331699158810 1598038990572 1997548738215 2663398317620 3995097476430 7990194952860