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40313523521 = 47857734543
BaseRepresentation
bin100101100010110111…
…111000110101000001
310212001112000011220202
4211202313320311001
51130030230223041
630304134414545
72625002203355
oct454267706501
9125045004822
1040313523521
1116107a29997
127990b01455
133a5600693b
141d460a1465
1510ae2b7a9b
hex962df8d41

40313523521 has 4 divisors (see below), whose sum is σ = 41171258112. Its totient is φ = 39455788932.

The previous prime is 40313523517. The next prime is 40313523541. The reversal of 40313523521 is 12532531304.

It is a happy number.

40313523521 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 40313523521 - 22 = 40313523517 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40313523541) 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, 428867225 + ... + 428867318.

It is an arithmetic number, because the mean of its divisors is an integer number (10292814528).

Almost surely, 240313523521 is an apocalyptic number.

It is an amenable number.

40313523521 is a deficient number, since it is larger than the sum of its proper divisors (857734591).

40313523521 is an equidigital number, since it uses as much as digits as its factorization.

40313523521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 857734590.

The product of its (nonzero) digits is 10800, while the sum is 29.

The spelling of 40313523521 in words is "forty billion, three hundred thirteen million, five hundred twenty-three thousand, five hundred twenty-one".

Divisors: 1 47 857734543 40313523521