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2143054245 = 35378834373
BaseRepresentation
bin111111110111100…
…0110100110100101
312112100112102202110
41333233012212211
513342110213440
6552353031233
7104051442363
oct17757064645
95470472673
102143054245
119aa775412
124b9855519
13281cb3947
14164896633
15c821e080
hex7fbc69a5

2143054245 has 32 divisors (see below), whose sum is σ = 3526353792. Its totient is φ = 1110557952.

The previous prime is 2143054237. The next prime is 2143054247. The reversal of 2143054245 is 5424503412.

It is not a de Polignac number, because 2143054245 - 23 = 2143054237 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2143054247) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 487879 + ... + 492251.

It is an arithmetic number, because the mean of its divisors is an integer number (110198556).

Almost surely, 22143054245 is an apocalyptic number.

It is an amenable number.

2143054245 is a deficient number, since it is larger than the sum of its proper divisors (1383299547).

2143054245 is a wasteful number, since it uses less digits than its factorization.

2143054245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5301.

The product of its (nonzero) digits is 19200, while the sum is 30.

The square root of 2143054245 is about 46293.1338861391. The cubic root of 2143054245 is about 1289.2715164599.

Adding to 2143054245 its reverse (5424503412), we get a palindrome (7567557657).

The spelling of 2143054245 in words is "two billion, one hundred forty-three million, fifty-four thousand, two hundred forty-five".

Divisors: 1 3 5 15 37 111 185 555 883 2649 4373 4415 13119 13245 21865 32671 65595 98013 161801 163355 485403 490065 809005 2427015 3861359 11584077 19306795 57920385 142870283 428610849 714351415 2143054245