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54434421051 = 31929311092939
BaseRepresentation
bin110010101100100010…
…110101100100111011
312012111121222002201120
4302230202311210323
51342440202433201
641001250320323
73634635642003
oct625442654473
9165447862646
1054434421051
11210a38a223a
12a671b890a3
1351966950ca
1428c5649003
151638d2c536
hexcac8b593b

54434421051 has 32 divisors (see below), whose sum is σ = 76755168000. Its totient is φ = 34219755648.

The previous prime is 54434421043. The next prime is 54434421061. The reversal of 54434421051 is 15012443445.

It is a happy number.

It is not a de Polignac number, because 54434421051 - 23 = 54434421043 is a prime.

It is not an unprimeable number, because it can be changed into a prime (54434421061) 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 31 ways as a sum of consecutive naturals, for example, 18519940 + ... + 18522878.

It is an arithmetic number, because the mean of its divisors is an integer number (2398599000).

Almost surely, 254434421051 is an apocalyptic number.

54434421051 is a deficient number, since it is larger than the sum of its proper divisors (22320746949).

54434421051 is a wasteful number, since it uses less digits than its factorization.

54434421051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4363.

The product of its (nonzero) digits is 38400, while the sum is 33.

Adding to 54434421051 its reverse (15012443445), we get a palindrome (69446864496).

The spelling of 54434421051 in words is "fifty-four billion, four hundred thirty-four million, four hundred twenty-one thousand, fifty-one".

Divisors: 1 3 19 57 293 879 1109 2939 3327 5567 8817 16701 21071 55841 63213 167523 324937 861127 974811 2583381 3259351 6173803 9778053 16361413 18521409 49084239 61927669 185783007 954989843 2864969529 18144807017 54434421051