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2143692620 = 225107184631
BaseRepresentation
bin111111111000110…
…0010011101001100
312112101201212102222
41333301202131030
513342241130440
6552414434512
7104060041466
oct17761423514
95471655388
102143692620
11a00070aa3
124b9b02a38
13282178394
141649c1136
15c82e82b5
hex7fc6274c

2143692620 has 12 divisors (see below), whose sum is σ = 4501754544. Its totient is φ = 857477040.

The previous prime is 2143692619. The next prime is 2143692623. The reversal of 2143692620 is 262963412.

It is not an unprimeable number, because it can be changed into a prime (2143692623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53592296 + ... + 53592335.

It is an arithmetic number, because the mean of its divisors is an integer number (375146212).

Almost surely, 22143692620 is an apocalyptic number.

2143692620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2143692620 is an abundant number, since it is smaller than the sum of its proper divisors (2358061924).

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

2143692620 is a wasteful number, since it uses less digits than its factorization.

2143692620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107184640 (or 107184638 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 35.

The square root of 2143692620 is about 46300.0282937279. The cubic root of 2143692620 is about 1289.3995202186.

The spelling of 2143692620 in words is "two billion, one hundred forty-three million, six hundred ninety-two thousand, six hundred twenty".

Divisors: 1 2 4 5 10 20 107184631 214369262 428738524 535923155 1071846310 2143692620