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40230220213 = 371087303249
BaseRepresentation
bin100101011101111010…
…000111000110110101
310211211201020221021001
4211131322013012311
51124342414021323
630252001123301
72622641141521
oct453572070665
9124751227231
1040230220213
1116074a01987
127969029531
133a4198ab41
141d38db8d81
1510a6d103ad
hex95de871b5

40230220213 has 4 divisors (see below), whose sum is σ = 41317523500. Its totient is φ = 39142916928.

The previous prime is 40230220193. The next prime is 40230220249. The reversal of 40230220213 is 31202203204.

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 33623456689 + 6606763524 = 183367^2 + 81282^2 .

It is a cyclic number.

It is not a de Polignac number, because 40230220213 - 25 = 40230220181 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 (40230220273) 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, 543651588 + ... + 543651661.

It is an arithmetic number, because the mean of its divisors is an integer number (10329380875).

Almost surely, 240230220213 is an apocalyptic number.

It is an amenable number.

40230220213 is a deficient number, since it is larger than the sum of its proper divisors (1087303287).

40230220213 is a wasteful number, since it uses less digits than its factorization.

40230220213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1087303286.

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 40230220213 its reverse (31202203204), we get a palindrome (71432423417).

The spelling of 40230220213 in words is "forty billion, two hundred thirty million, two hundred twenty thousand, two hundred thirteen".

Divisors: 1 37 1087303249 40230220213