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54145884937 = 169639319183
BaseRepresentation
bin110010011011010110…
…001010001100001001
312011202112000221120211
4302123112022030021
51341342321304222
640512502121121
73624533266564
oct623326121411
9164675027524
1054145884937
1120a65a38841
12a5b14201a1
13514b97c291
1428991bb4db
15161d835277
hexc9b58a309

54145884937 has 4 divisors (see below), whose sum is σ = 54146373760. Its totient is φ = 54145396116.

The previous prime is 54145884931. The next prime is 54145884941. The reversal of 54145884937 is 73948854145.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 54145884937 - 23 = 54145884929 is a prime.

It is a super-2 number, since 2×541458849372 (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 (54145884931) 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, 10048 + ... + 329230.

It is an arithmetic number, because the mean of its divisors is an integer number (13536593440).

Almost surely, 254145884937 is an apocalyptic number.

It is an amenable number.

54145884937 is a deficient number, since it is larger than the sum of its proper divisors (488823).

54145884937 is a wasteful number, since it uses less digits than its factorization.

54145884937 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488822.

The product of its digits is 19353600, while the sum is 58.

The spelling of 54145884937 in words is "fifty-four billion, one hundred forty-five million, eight hundred eighty-four thousand, nine hundred thirty-seven".

Divisors: 1 169639 319183 54145884937