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38381850555 = 3517211713351
BaseRepresentation
bin100011101111101111…
…001000111110111011
310200001220020000202120
4203233233020332323
51112101223204210
625344332132323
72526065226636
oct435757107673
9120056200676
1038381850555
1115306610454
1275320070a3
133808a63799
141c01710c1d
15ee9900270
hex8efbc8fbb

38381850555 has 32 divisors (see below), whose sum is σ = 65331629568. Its totient is φ = 19174848000.

The previous prime is 38381850539. The next prime is 38381850569. The reversal of 38381850555 is 55505818383.

It is not a de Polignac number, because 38381850555 - 24 = 38381850539 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a junction number, because it is equal to n+sod(n) for n = 38381850498 and 38381850507.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 302871 + ... + 410480.

It is an arithmetic number, because the mean of its divisors is an integer number (2041613424).

Almost surely, 238381850555 is an apocalyptic number.

38381850555 is a deficient number, since it is larger than the sum of its proper divisors (26949779013).

38381850555 is a wasteful number, since it uses less digits than its factorization.

38381850555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 713587.

The product of its (nonzero) digits is 2880000, while the sum is 51.

The spelling of 38381850555 in words is "thirty-eight billion, three hundred eighty-one million, eight hundred fifty thousand, five hundred fifty-five".

Divisors: 1 3 5 15 17 51 85 211 255 633 1055 3165 3587 10761 17935 53805 713351 2140053 3566755 10700265 12126967 36380901 60634835 150517061 181904505 451551183 752585305 2257755915 2558790037 7676370111 12793950185 38381850555