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67727760705020 = 225131571659180811
BaseRepresentation
bin11110110011001000110010…
…00111100100010111111100
322212210201012002111211020102
433121210121013210113330
532334122423220030040
6400013412001340232
720160112022221343
oct1731443107442774
9285721162454212
1067727760705020
111a642200293669
12771a116037678
132ba3914ac9810
1412a2080b32b5a
157c6b4b5a3515
hex3d99191e45fc

67727760705020 has 48 divisors (see below), whose sum is σ = 154144534158048. Its totient is φ = 24847891810560.

The previous prime is 67727760705013. The next prime is 67727760705029. The reversal of 67727760705020 is 2050706772776.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67727760705029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 829549586 + ... + 829631225.

It is an arithmetic number, because the mean of its divisors is an integer number (3211344461626).

Almost surely, 267727760705020 is an apocalyptic number.

It is an amenable number.

67727760705020 is an abundant number, since it is smaller than the sum of its proper divisors (86416773453028).

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

67727760705020 is a wasteful number, since it uses less digits than its factorization.

67727760705020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1659180990 (or 1659180988 counting only the distinct ones).

The product of its (nonzero) digits is 12101040, while the sum is 56.

The spelling of 67727760705020 in words is "sixty-seven trillion, seven hundred twenty-seven billion, seven hundred sixty million, seven hundred five thousand, twenty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 157 260 314 628 785 1570 2041 3140 4082 8164 10205 20410 40820 1659180811 3318361622 6636723244 8295904055 16591808110 21569350543 33183616220 43138701086 86277402172 107846752715 215693505430 260491387327 431387010860 520982774654 1041965549308 1302456936635 2604913873270 3386388035251 5209827746540 6772776070502 13545552141004 16931940176255 33863880352510 67727760705020