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2540433020 = 225794493581
BaseRepresentation
bin1001011101101011…
…1110111001111100
320120001021100221212
42113122332321330
520200322324040
61100030143552
7116645216156
oct22732767174
96501240855
102540433020
11109400aa24
125aa951bb8
13316418108
141a1577ad6
15ed065d65
hex976bee7c

2540433020 has 48 divisors (see below), whose sum is σ = 5415984000. Its totient is φ = 1000796160.

The previous prime is 2540433011. The next prime is 2540433107. The reversal of 2540433020 is 203340452.

It is a super-3 number, since 3×25404330203 (a number of 29 digits) contains 333 as substring.

It is a congruent number.

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, 707630 + ... + 711210.

It is an arithmetic number, because the mean of its divisors is an integer number (112833000).

Almost surely, 22540433020 is an apocalyptic number.

2540433020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2540433020 is an abundant number, since it is smaller than the sum of its proper divisors (2875550980).

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

2540433020 is a wasteful number, since it uses less digits than its factorization.

2540433020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4118 (or 4116 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 23.

The square root of 2540433020 is about 50402.7084589707. The cubic root of 2540433020 is about 1364.4865203150.

Adding to 2540433020 its reverse (203340452), we get a palindrome (2743773472).

The spelling of 2540433020 in words is "two billion, five hundred forty million, four hundred thirty-three thousand, twenty".

Divisors: 1 2 4 5 10 20 79 158 316 395 449 790 898 1580 1796 2245 3581 4490 7162 8980 14324 17905 35471 35810 70942 71620 141884 177355 282899 354710 565798 709420 1131596 1414495 1607869 2828990 3215738 5657980 6431476 8039345 16078690 32157380 127021651 254043302 508086604 635108255 1270216510 2540433020