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40450304525 = 521618012181
BaseRepresentation
bin100101101011000001…
…101010101000001101
310212102001101101011212
4211223001222220031
51130320234221100
630325502224205
72631252625661
oct455301525015
9125361341155
1040450304525
1116178162544
127a0a885065
133a78457a47
141d5a3088a1
1510bb2d5635
hex96b06aa0d

40450304525 has 6 divisors (see below), whose sum is σ = 50158377642. Its totient is φ = 32360243600.

The previous prime is 40450304473. The next prime is 40450304527. The reversal of 40450304525 is 52540305404.

It can be written as a sum of positive squares in 3 ways, for example, as 9629693161 + 30820611364 = 98131^2 + 175558^2 .

It is not a de Polignac number, because 40450304525 - 28 = 40450304269 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40450304491 and 40450304500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40450304527) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 809006066 + ... + 809006115.

It is an arithmetic number, because the mean of its divisors is an integer number (8359729607).

Almost surely, 240450304525 is an apocalyptic number.

It is an amenable number.

40450304525 is a deficient number, since it is larger than the sum of its proper divisors (9708073117).

40450304525 is a wasteful number, since it uses less digits than its factorization.

40450304525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1618012191 (or 1618012186 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 32.

Adding to 40450304525 its reverse (52540305404), we get a palindrome (92990609929).

The spelling of 40450304525 in words is "forty billion, four hundred fifty million, three hundred four thousand, five hundred twenty-five".

Divisors: 1 5 25 1618012181 8090060905 40450304525