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54400000331 = 523104015297
BaseRepresentation
bin110010101010011111…
…100010000101001011
312012102020012100101002
4302222133202011023
51342402400002311
640554020445215
73634040242025
oct625237420513
9165366170332
1054400000331
1121086422466
12a66254980b
13518c502c11
1428c0c49015
151635ccd93b
hexcaa7e214b

54400000331 has 4 divisors (see below), whose sum is σ = 54504016152. Its totient is φ = 54295984512.

The previous prime is 54400000313. The next prime is 54400000339. The reversal of 54400000331 is 13300000445.

54400000331 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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-54400000331 is a prime.

It is a super-2 number, since 2×544000003312 (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 (54400000339) 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, 52007126 + ... + 52008171.

It is an arithmetic number, because the mean of its divisors is an integer number (13626004038).

Almost surely, 254400000331 is an apocalyptic number.

54400000331 is a deficient number, since it is larger than the sum of its proper divisors (104015821).

54400000331 is a wasteful number, since it uses less digits than its factorization.

54400000331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104015820.

The product of its (nonzero) digits is 720, while the sum is 20.

Adding to 54400000331 its reverse (13300000445), we get a palindrome (67700000776).

The spelling of 54400000331 in words is "fifty-four billion, four hundred million, three hundred thirty-one", and thus it is an aban number.

Divisors: 1 523 104015297 54400000331