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38474747085 = 357932468141
BaseRepresentation
bin100011110101010001…
…100000110011001101
310200022101000122211210
4203311101200303031
51112244013401320
625401451205033
72531303645205
oct436521406315
9120271018753
1038474747085
1115353a9aa45
127559146779
13382208ac48
141c0dbb3405
151002b500e0
hex8f5460ccd

38474747085 has 16 divisors (see below), whose sum is σ = 62338832640. Its totient is φ = 20260119360.

The previous prime is 38474747083. The next prime is 38474747141. The reversal of 38474747085 is 58074747483.

It is not a de Polignac number, because 38474747085 - 21 = 38474747083 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38474747083) 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, 16232886 + ... + 16235255.

It is an arithmetic number, because the mean of its divisors is an integer number (3896177040).

Almost surely, 238474747085 is an apocalyptic number.

It is an amenable number.

38474747085 is a deficient number, since it is larger than the sum of its proper divisors (23864085555).

38474747085 is a wasteful number, since it uses less digits than its factorization.

38474747085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32468228.

The product of its (nonzero) digits is 21073920, while the sum is 57.

The spelling of 38474747085 in words is "thirty-eight billion, four hundred seventy-four million, seven hundred forty-seven thousand, eighty-five".

Divisors: 1 3 5 15 79 237 395 1185 32468141 97404423 162340705 487022115 2564983139 7694949417 12824915695 38474747085