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2748066780 = 2235103444671
BaseRepresentation
bin1010001111001100…
…0010101111011100
321002111222020221010
42203303002233130
521112001114110
61132404335220
7125046116334
oct24363025734
97074866833
102748066780
111190237278
126483a4510
1334a445c24
141c0d860c4
151113cc020
hexa3cc2bdc

2748066780 has 48 divisors (see below), whose sum is σ = 7769309184. Its totient is φ = 725701440.

The previous prime is 2748066751. The next prime is 2748066787. The reversal of 2748066780 is 876608472.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2748066787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 216156 + ... + 228515.

It is an arithmetic number, because the mean of its divisors is an integer number (161860608).

Almost surely, 22748066780 is an apocalyptic number.

2748066780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2748066780 is an abundant number, since it is smaller than the sum of its proper divisors (5021242404).

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

2748066780 is a wasteful number, since it uses less digits than its factorization.

2748066780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444786 (or 444784 counting only the distinct ones).

The product of its (nonzero) digits is 903168, while the sum is 48.

The square root of 2748066780 is about 52422.0066384338. The cubic root of 2748066780 is about 1400.6912878534.

The spelling of 2748066780 in words is "two billion, seven hundred forty-eight million, sixty-six thousand, seven hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 103 206 309 412 515 618 1030 1236 1545 2060 3090 6180 444671 889342 1334013 1778684 2223355 2668026 4446710 5336052 6670065 8893420 13340130 26680260 45801113 91602226 137403339 183204452 229005565 274806678 458011130 549613356 687016695 916022260 1374033390 2748066780