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38369020689 = 3217250777913
BaseRepresentation
bin100011101110111110…
…001100101100010001
310200001000002012111100
4203232332030230101
51112034432130224
625343153135013
72525551203036
oct435676145421
9120030065440
1038369020689
11152aa34815a
12752985a469
1338061c0b4c
141bddb3138d
15ee8718ac9
hex8eef8cb11

38369020689 has 12 divisors (see below), whose sum is σ = 58682031876. Its totient is φ = 24074679552.

The previous prime is 38369020687. The next prime is 38369020699. The reversal of 38369020689 is 98602096383.

It can be written as a sum of positive squares in 2 ways, for example, as 25620804225 + 12748216464 = 160065^2 + 112908^2 .

It is not a de Polignac number, because 38369020689 - 21 = 38369020687 is a prime.

It is not an unprimeable number, because it can be changed into a prime (38369020687) 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 11 ways as a sum of consecutive naturals, for example, 125388804 + ... + 125389109.

It is an arithmetic number, because the mean of its divisors is an integer number (4890169323).

Almost surely, 238369020689 is an apocalyptic number.

It is an amenable number.

38369020689 is a deficient number, since it is larger than the sum of its proper divisors (20313011187).

38369020689 is a wasteful number, since it uses less digits than its factorization.

38369020689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250777936 (or 250777933 counting only the distinct ones).

The product of its (nonzero) digits is 3359232, while the sum is 54.

The spelling of 38369020689 in words is "thirty-eight billion, three hundred sixty-nine million, twenty thousand, six hundred eighty-nine".

Divisors: 1 3 9 17 51 153 250777913 752333739 2257001217 4263224521 12789673563 38369020689