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54405142177 = 1748712295347
BaseRepresentation
bin110010101010110011…
…001001011010100001
312012102120212120122211
4302222303021122201
51342410204022202
640554323002121
73634132035601
oct625263113241
9165376776584
1054405142177
1121089314621
12a664209341
1351905b3429
1428c17c6c01
1516364971d7
hexcaacc96a1

54405142177 has 16 divisors (see below), whose sum is σ = 57781503360. Its totient is φ = 51048569088.

The previous prime is 54405142157. The next prime is 54405142193. The reversal of 54405142177 is 77124150445.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-54405142177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54405142117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10172218 + ... + 10177564.

It is an arithmetic number, because the mean of its divisors is an integer number (3611343960).

Almost surely, 254405142177 is an apocalyptic number.

It is an amenable number.

54405142177 is a deficient number, since it is larger than the sum of its proper divisors (3376361183).

54405142177 is a wasteful number, since it uses less digits than its factorization.

54405142177 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7080.

The product of its (nonzero) digits is 156800, while the sum is 40.

The spelling of 54405142177 in words is "fifty-four billion, four hundred five million, one hundred forty-two thousand, one hundred seventy-seven".

Divisors: 1 17 487 1229 5347 8279 20893 90899 598523 2603989 6571463 10174891 44267813 111714871 3200302481 54405142177