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54671235481 = 1372633151561
BaseRepresentation
bin110010111010101010…
…001101100110011001
312020010010120112001101
4302322222031212121
51343431314013411
641040550151401
73643542556042
oct627252154631
9166103515041
1054671235481
112120553a445
12a719352561
13520376bca5
142908c918c9
15164ea098c1
hexcbaa8d999

54671235481 has 8 divisors (see below), whose sum is σ = 55091574504. Its totient is φ = 54251205120.

The previous prime is 54671235467. The next prime is 54671235491. The reversal of 54671235481 is 18453217645.

It can be written as a sum of positive squares in 4 ways, for example, as 9828937881 + 44842297600 = 99141^2 + 211760^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 54671235481 - 25 = 54671235449 is a prime.

It is a super-2 number, since 2×546712354812 (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 (54671235401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 284941 + ... + 436501.

It is an arithmetic number, because the mean of its divisors is an integer number (6886446813).

Almost surely, 254671235481 is an apocalyptic number.

It is an amenable number.

54671235481 is a deficient number, since it is larger than the sum of its proper divisors (420339023).

54671235481 is a wasteful number, since it uses less digits than its factorization.

54671235481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154331.

The product of its digits is 806400, while the sum is 46.

The spelling of 54671235481 in words is "fifty-four billion, six hundred seventy-one million, two hundred thirty-five thousand, four hundred eighty-one".

Divisors: 1 137 2633 151561 360721 20763857 399060113 54671235481