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40303131043 = 77181092819
BaseRepresentation
bin100101100010010000…
…001111100110100011
310212000210110012010011
4211202100033212203
51130020100143133
630303123545351
72624514650530
oct454220174643
9125023405104
1040303131043
111610208096a
12798952b257
133a53b08546
141d44957d87
1510ad4136cd
hex96240f9a3

40303131043 has 8 divisors (see below), whose sum is σ = 46709464320. Its totient is φ = 34058983560.

The previous prime is 40303131019. The next prime is 40303131073. The reversal of 40303131043 is 34013130304.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40303131043 - 213 = 40303122851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40303131013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40545913 + ... + 40546906.

It is an arithmetic number, because the mean of its divisors is an integer number (5838683040).

Almost surely, 240303131043 is an apocalyptic number.

40303131043 is a deficient number, since it is larger than the sum of its proper divisors (6406333277).

40303131043 is an equidigital number, since it uses as much as digits as its factorization.

40303131043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81092897.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 40303131043 its reverse (34013130304), we get a palindrome (74316261347).

The spelling of 40303131043 in words is "forty billion, three hundred three million, one hundred thirty-one thousand, forty-three".

Divisors: 1 7 71 497 81092819 567649733 5757590149 40303131043