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54245440996657 = 179732895961793
BaseRepresentation
bin11000101010110000000000…
…01111011100010100110001
321010001210222001101110022121
430111120000033130110301
524102224130343343112
6311212002255434241
714266050411450121
oct1425300017342461
9233053861343277
1054245440996657
11163143a92a3249
126101168525981
132436427c15681
14d576c9a90c81
156410ad58d407
hex3156003dc531

54245440996657 has 8 divisors (see below), whose sum is σ = 58028476604616. Its totient is φ = 50528197312512.

The previous prime is 54245440996601. The next prime is 54245440996673. The reversal of 54245440996657 is 75669904454245.

It can be written as a sum of positive squares in 4 ways, for example, as 5983742776561 + 48261698220096 = 2446169^2 + 6947064^2 .

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

It is not a de Polignac number, because 54245440996657 - 219 = 54245440472369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54245440996157) 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, 16447979248 + ... + 16447982545.

It is an arithmetic number, because the mean of its divisors is an integer number (7253559575577).

Almost surely, 254245440996657 is an apocalyptic number.

It is an amenable number.

54245440996657 is a deficient number, since it is larger than the sum of its proper divisors (3783035607959).

54245440996657 is a wasteful number, since it uses less digits than its factorization.

54245440996657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32895961907.

The product of its (nonzero) digits is 1306368000, while the sum is 70.

The spelling of 54245440996657 in words is "fifty-four trillion, two hundred forty-five billion, four hundred forty million, nine hundred ninety-six thousand, six hundred fifty-seven".

Divisors: 1 17 97 1649 32895961793 559231350481 3190908293921 54245440996657