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2005402252 = 22771621509
BaseRepresentation
bin111011110001000…
…0000001010001100
312011202111222201111
41313202000022030
513101340333002
6530554421404
7100460431540
oct16742001214
95152458644
102005402252
11939aa7437
1247b731864
1325c619269
141504a3a20
15bb0cd3d7
hex7788028c

2005402252 has 12 divisors (see below), whose sum is σ = 4010804560. Its totient is φ = 859458096.

The previous prime is 2005402249. The next prime is 2005402261. The reversal of 2005402252 is 2522045002.

It is a happy number.

2005402252 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35810727 + ... + 35810782.

Almost surely, 22005402252 is an apocalyptic number.

It is an amenable number.

2005402252 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2005402252 is a wasteful number, since it uses less digits than its factorization.

2005402252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71621520 (or 71621518 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 22.

The square root of 2005402252 is about 44781.7178321690. The cubic root of 2005402252 is about 1261.0544318727.

Adding to 2005402252 its reverse (2522045002), we get a palindrome (4527447254).

The spelling of 2005402252 in words is "two billion, five million, four hundred two thousand, two hundred fifty-two".

Divisors: 1 2 4 7 14 28 71621509 143243018 286486036 501350563 1002701126 2005402252