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40550030143 = 75792861449
BaseRepresentation
bin100101110000111110…
…000101101100111111
310212200000000222000021
4211300332011230333
51131021301431033
630343423513011
72633603366140
oct456076055477
9125600028007
1040550030143
1116219486907
127a38158767
133a9300369c
141d69667ac7
1510c4e33b2d
hex970f85b3f

40550030143 has 4 divisors (see below), whose sum is σ = 46342891600. Its totient is φ = 34757168688.

The previous prime is 40550030141. The next prime is 40550030149. The reversal of 40550030143 is 34103005504.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40550030143 - 21 = 40550030141 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 (40550030141) 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, 2896430718 + ... + 2896430731.

It is an arithmetic number, because the mean of its divisors is an integer number (11585722900).

Almost surely, 240550030143 is an apocalyptic number.

40550030143 is a deficient number, since it is larger than the sum of its proper divisors (5792861457).

40550030143 is an equidigital number, since it uses as much as digits as its factorization.

40550030143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5792861456.

The product of its (nonzero) digits is 3600, while the sum is 25.

Adding to 40550030143 its reverse (34103005504), we get a palindrome (74653035647).

The spelling of 40550030143 in words is "forty billion, five hundred fifty million, thirty thousand, one hundred forty-three".

Divisors: 1 7 5792861449 40550030143