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75000057655 = 519377720267
BaseRepresentation
bin100010111011001011…
…0100000111100110111
321011120212211200112011
41011312112200330313
52212100003321110
654242103305051
75263366654135
oct1056626407467
9234525750464
1075000057655
1129897639426
121265144b187
1370c32c6553
1438b6ad0755
151e3e57948a
hex11765a0f37

75000057655 has 8 divisors (see below), whose sum is σ = 90466391952. Its totient is φ = 59689164288.

The previous prime is 75000057647. The next prime is 75000057677. The reversal of 75000057655 is 55675000057.

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 75000057655 - 23 = 75000057647 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38859169 + ... + 38861098.

It is an arithmetic number, because the mean of its divisors is an integer number (11308298994).

Almost surely, 275000057655 is an apocalyptic number.

75000057655 is a deficient number, since it is larger than the sum of its proper divisors (15466334297).

75000057655 is a wasteful number, since it uses less digits than its factorization.

75000057655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77720465.

The product of its (nonzero) digits is 183750, while the sum is 40.

The spelling of 75000057655 in words is "seventy-five billion, fifty-seven thousand, six hundred fifty-five".

Divisors: 1 5 193 965 77720267 388601335 15000011531 75000057655