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55383670385 = 529339377543
BaseRepresentation
bin110011100101000111…
…111011111001110001
312021221210010222000022
4303211013323321301
51401411204423020
641235400133225
74000313300531
oct634507737161
9167853128008
1055383670385
112154070231a
12a897a67215
1352b82432c4
1429757454c1
151692336625
hexce51fbe71

55383670385 has 8 divisors (see below), whose sum is σ = 66462845760. Its totient is φ = 44305308784.

The previous prime is 55383670367. The next prime is 55383670423. The reversal of 55383670385 is 58307638355.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-55383670385 is a prime.

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, 42077 + ... + 335466.

It is an arithmetic number, because the mean of its divisors is an integer number (8307855720).

Almost surely, 255383670385 is an apocalyptic number.

It is an amenable number.

55383670385 is a deficient number, since it is larger than the sum of its proper divisors (11079175375).

55383670385 is a wasteful number, since it uses less digits than its factorization.

55383670385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406887.

The product of its (nonzero) digits is 9072000, while the sum is 53.

The spelling of 55383670385 in words is "fifty-five billion, three hundred eighty-three million, six hundred seventy thousand, three hundred eighty-five".

Divisors: 1 5 29339 146695 377543 1887715 11076734077 55383670385