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2743140820 = 225719739931
BaseRepresentation
bin1010001110000001…
…0000000111010100
321002011200222210011
42203200100013110
521104221001240
61132111010004
7124656212050
oct24340200724
97064628704
102743140820
111188482332
12646809904
1334940ca64
141c0462c60
15110c576ea
hexa38101d4

2743140820 has 48 divisors (see below), whose sum is σ = 6587538048. Its totient is φ = 939934080.

The previous prime is 2743140767. The next prime is 2743140821. The reversal of 2743140820 is 280413472.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2743140821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 271255 + ... + 281185.

It is an arithmetic number, because the mean of its divisors is an integer number (137240376).

Almost surely, 22743140820 is an apocalyptic number.

2743140820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2743140820 is an abundant number, since it is smaller than the sum of its proper divisors (3844397228).

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

2743140820 is a wasteful number, since it uses less digits than its factorization.

2743140820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11920 (or 11918 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 31.

The square root of 2743140820 is about 52375.0018615751. The cubic root of 2743140820 is about 1399.8538656992.

The spelling of 2743140820 in words is "two billion, seven hundred forty-three million, one hundred forty thousand, eight hundred twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 1973 3946 7892 9865 9931 13811 19730 19862 27622 39460 39724 49655 55244 69055 69517 99310 138110 139034 198620 276220 278068 347585 695170 1390340 19593863 39187726 78375452 97969315 137157041 195938630 274314082 391877260 548628164 685785205 1371570410 2743140820