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4005355213 = 29138115697
BaseRepresentation
bin1110111010111100…
…1101111011001101
3101100010210010102101
43232233031323031
531200332331323
61501240355101
7201153646306
oct35657157315
911303703371
104005355213
111775a11722
12939475a91
134baa78092
1429dd497ad
15186981dad
hexeebcdecd

4005355213 has 4 divisors (see below), whose sum is σ = 4143470940. Its totient is φ = 3867239488.

The previous prime is 4005355177. The next prime is 4005355267. The reversal of 4005355213 is 3125535004.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3012033924 + 993321289 = 54882^2 + 31517^2 .

It is a cyclic number.

It is not a de Polignac number, because 4005355213 - 217 = 4005224141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4005355513) 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, 69057820 + ... + 69057877.

It is an arithmetic number, because the mean of its divisors is an integer number (1035867735).

Almost surely, 24005355213 is an apocalyptic number.

It is an amenable number.

4005355213 is a deficient number, since it is larger than the sum of its proper divisors (138115727).

4005355213 is a wasteful number, since it uses less digits than its factorization.

4005355213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138115726.

The product of its (nonzero) digits is 9000, while the sum is 28.

The square root of 4005355213 is about 63287.8757188136. The cubic root of 4005355213 is about 1588.1091419602.

It can be divided in two parts, 40053 and 55213, that added together give a triangular number (95266 = T436).

The spelling of 4005355213 in words is "four billion, five million, three hundred fifty-five thousand, two hundred thirteen".

Divisors: 1 29 138115697 4005355213