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2143255330 = 25704330431
BaseRepresentation
bin111111110111111…
…0111101100100010
312112100220122121001
41333233313230202
513342133132310
6552401222214
7104053240546
oct17757675442
95470818531
102143255330
119aa8a24a7
124b993196a
13282054328
14164909a26
15c825d93a
hex7fbf7b22

2143255330 has 16 divisors (see below), whose sum is σ = 3858534144. Its totient is φ = 857152240.

The previous prime is 2143255327. The next prime is 2143255333. The reversal of 2143255330 is 335523412.

It is an interprime number because it is at equal distance from previous prime (2143255327) and next prime (2143255333).

It is not an unprimeable number, because it can be changed into a prime (2143255333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55215 + ... + 85645.

It is an arithmetic number, because the mean of its divisors is an integer number (241158384).

Almost surely, 22143255330 is an apocalyptic number.

2143255330 is a deficient number, since it is larger than the sum of its proper divisors (1715278814).

2143255330 is a wasteful number, since it uses less digits than its factorization.

2143255330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37481.

The product of its (nonzero) digits is 10800, while the sum is 28.

The square root of 2143255330 is about 46295.3057015503. The cubic root of 2143255330 is about 1289.3118397595.

Adding to 2143255330 its reverse (335523412), we get a palindrome (2478778742).

The spelling of 2143255330 in words is "two billion, one hundred forty-three million, two hundred fifty-five thousand, three hundred thirty".

Divisors: 1 2 5 10 7043 14086 30431 35215 60862 70430 152155 304310 214325533 428651066 1071627665 2143255330