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4042165213 = 13130856223
BaseRepresentation
bin1111000011101110…
…1000101111011101
3101102201001021020201
43300323220233131
531234243241323
61505033343501
7202111560142
oct36073505735
911381037221
104042165213
111794773609
12949867b91
134c5595948
142a4bac3c9
15189d038ad
hexf0ee8bdd

4042165213 has 4 divisors (see below), whose sum is σ = 4073021568. Its totient is φ = 4011308860.

The previous prime is 4042165207. The next prime is 4042165247. The reversal of 4042165213 is 3125612404.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4042165213 - 25 = 4042165181 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 (4042165273) 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, 15427981 + ... + 15428242.

It is an arithmetic number, because the mean of its divisors is an integer number (1018255392).

Almost surely, 24042165213 is an apocalyptic number.

It is an amenable number.

4042165213 is a deficient number, since it is larger than the sum of its proper divisors (30856355).

4042165213 is a wasteful number, since it uses less digits than its factorization.

4042165213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30856354.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 4042165213 is about 63578.0246075639. The cubic root of 4042165213 is about 1592.9593256191.

Adding to 4042165213 its reverse (3125612404), we get a palindrome (7167777617).

The spelling of 4042165213 in words is "four billion, forty-two million, one hundred sixty-five thousand, two hundred thirteen".

Divisors: 1 131 30856223 4042165213