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40040212441 = 224317851187
BaseRepresentation
bin100101010010100101…
…010010011111011001
310211100110201112121011
4211102211102133121
51124000243244231
630221052413521
72615143122145
oct452245223731
9124313645534
1040040212441
1115a87724269
1279154772a1
133a114c19c8
141d1ba78225
1510952cb9b1
hex9529527d9

40040212441 has 4 divisors (see below), whose sum is σ = 40058065872. Its totient is φ = 40022359012.

The previous prime is 40040212439. The next prime is 40040212477. The reversal of 40040212441 is 14421204004.

40040212441 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 40040212441 - 21 = 40040212439 is a prime.

It is a super-2 number, since 2×400402124412 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40040212241) 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, 8923351 + ... + 8927836.

It is an arithmetic number, because the mean of its divisors is an integer number (10014516468).

Almost surely, 240040212441 is an apocalyptic number.

It is an amenable number.

40040212441 is a deficient number, since it is larger than the sum of its proper divisors (17853431).

40040212441 is a wasteful number, since it uses less digits than its factorization.

40040212441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17853430.

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 40040212441 its reverse (14421204004), we get a palindrome (54461416445).

The spelling of 40040212441 in words is "forty billion, forty million, two hundred twelve thousand, four hundred forty-one".

Divisors: 1 2243 17851187 40040212441