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2543388290 = 256116724967
BaseRepresentation
bin1001011110011001…
…0000011010000010
320120020211111211022
42113212100122002
520202101411130
61100213345442
7120012305132
oct22746203202
96506744738
102543388290
1110957492a3
125ab938282
13316c112b1
141a1b06ac2
15ed44b7e5
hex97990682

2543388290 has 32 divisors (see below), whose sum is σ = 4681200384. Its totient is φ = 994645440.

The previous prime is 2543388283. The next prime is 2543388299. The reversal of 2543388290 is 928833452.

It is not an unprimeable number, because it can be changed into a prime (2543388299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89387 + ... + 114353.

It is an arithmetic number, because the mean of its divisors is an integer number (146287512).

Almost surely, 22543388290 is an apocalyptic number.

2543388290 is a deficient number, since it is larger than the sum of its proper divisors (2137812094).

2543388290 is a wasteful number, since it uses less digits than its factorization.

2543388290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25202.

The product of its (nonzero) digits is 414720, while the sum is 44.

The square root of 2543388290 is about 50432.0165172879. The cubic root of 2543388290 is about 1365.0154148545.

The spelling of 2543388290 in words is "two billion, five hundred forty-three million, three hundred eighty-eight thousand, two hundred ninety".

Divisors: 1 2 5 10 61 122 167 305 334 610 835 1670 10187 20374 24967 49934 50935 101870 124835 249670 1522987 3045974 4169489 7614935 8338978 15229870 20847445 41694890 254338829 508677658 1271694145 2543388290