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2745933140 = 2251572393659
BaseRepresentation
bin1010001110101011…
…1001110101010100
321002100221212010102
42203222321311110
521110424330030
61132250513232
7125022021656
oct24352716524
97070855112
102745933140
11118a00a235
12647735818
13349b79a12
141c098c6d6
15111109c45
hexa3ab9d54

2745933140 has 48 divisors (see below), whose sum is σ = 5829062400. Its totient is φ = 1086513792.

The previous prime is 2745933103. The next prime is 2745933149. The reversal of 2745933140 is 413395472.

It is a junction number, because it is equal to n+sod(n) for n = 2745933094 and 2745933103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2745933149) 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, 748631 + ... + 752289.

It is an arithmetic number, because the mean of its divisors is an integer number (121438800).

Almost surely, 22745933140 is an apocalyptic number.

2745933140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2745933140 is an abundant number, since it is smaller than the sum of its proper divisors (3083129260).

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

2745933140 is a wasteful number, since it uses less digits than its factorization.

2745933140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4064 (or 4062 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 38.

The square root of 2745933140 is about 52401.6520731933. The cubic root of 2745933140 is about 1400.3286881316.

The spelling of 2745933140 in words is "two billion, seven hundred forty-five million, nine hundred thirty-three thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 157 239 314 478 628 785 956 1195 1570 2390 3140 3659 4780 7318 14636 18295 36590 37523 73180 75046 150092 187615 375230 574463 750460 874501 1148926 1749002 2297852 2872315 3498004 4372505 5744630 8745010 11489260 17490020 137296657 274593314 549186628 686483285 1372966570 2745933140