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40300241221 = 141529284749
BaseRepresentation
bin100101100010000101…
…001110000101000101
310212000121000101000201
4211202011032011011
51130013330204341
630302542010501
72624451253432
oct454205160505
9125017011021
1040300241221
1116100487789
127988576a31
133a533360a6
141d44404b89
1510ad042331
hex96214e145

40300241221 has 4 divisors (see below), whose sum is σ = 40300667500. Its totient is φ = 40299814944.

The previous prime is 40300241207. The next prime is 40300241231. The reversal of 40300241221 is 12214200304.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 13773604321 + 26526636900 = 117361^2 + 162870^2 .

It is a cyclic number.

It is not a de Polignac number, because 40300241221 - 235 = 5940502853 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 (40300241231) 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, 846 + ... + 283903.

It is an arithmetic number, because the mean of its divisors is an integer number (10075166875).

Almost surely, 240300241221 is an apocalyptic number.

It is an amenable number.

40300241221 is a deficient number, since it is larger than the sum of its proper divisors (426279).

40300241221 is a wasteful number, since it uses less digits than its factorization.

40300241221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 426278.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 40300241221 its reverse (12214200304), we get a palindrome (52514441525).

The spelling of 40300241221 in words is "forty billion, three hundred million, two hundred forty-one thousand, two hundred twenty-one".

Divisors: 1 141529 284749 40300241221