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2749232420 = 2251134736013
BaseRepresentation
bin1010001111011101…
…1111010100100100
321002121011110212222
42203313133110210
521112300414140
61132445331512
7125062042604
oct24367372444
97077143788
102749232420
111190963010
12648866b98
1334a76365c
141c11aac04
1511155c5b5
hexa3ddf524

2749232420 has 48 divisors (see below), whose sum is σ = 6316567488. Its totient is φ = 996812160.

The previous prime is 2749232407. The next prime is 2749232459. The reversal of 2749232420 is 242329472.

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, 58334 + ... + 94346.

It is an arithmetic number, because the mean of its divisors is an integer number (131595156).

Almost surely, 22749232420 is an apocalyptic number.

2749232420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2749232420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3158283744).

2749232420 is an abundant number, since it is smaller than the sum of its proper divisors (3567335068).

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

2749232420 is a wasteful number, since it uses less digits than its factorization.

2749232420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36380 (or 36378 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 35.

The square root of 2749232420 is about 52433.1233096027. The cubic root of 2749232420 is about 1400.8893023283.

The spelling of 2749232420 in words is "two billion, seven hundred forty-nine million, two hundred thirty-two thousand, four hundred twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 347 694 1388 1735 3470 3817 6940 7634 15268 19085 36013 38170 72026 76340 144052 180065 360130 396143 720260 792286 1584572 1980715 3961430 7922860 12496511 24993022 49986044 62482555 124965110 137461621 249930220 274923242 549846484 687308105 1374616210 2749232420