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38022891849 = 3217248515633
BaseRepresentation
bin100011011010010101…
…110100100101001001
310122010212210000222200
4203122111310211021
51110332330014344
625244550310413
72514146151045
oct433225644511
9118125700880
1038022891849
1115141a27468
127451958409
13377c591997
141ba9b91025
15ec8147069
hex8da574949

38022891849 has 12 divisors (see below), whose sum is σ = 58152658356. Its totient is φ = 23857500672.

The previous prime is 38022891839. The next prime is 38022891859. The reversal of 38022891849 is 94819822083.

38022891849 is a `hidden beast` number, since 380 + 2 + 2 + 89 + 184 + 9 = 666.

It is an interprime number because it is at equal distance from previous prime (38022891839) and next prime (38022891859).

It can be written as a sum of positive squares in 2 ways, for example, as 14562455625 + 23460436224 = 120675^2 + 153168^2 .

It is not a de Polignac number, because 38022891849 - 29 = 38022891337 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 38022891795 and 38022891804.

It is not an unprimeable number, because it can be changed into a prime (38022891839) 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 11 ways as a sum of consecutive naturals, for example, 124257664 + ... + 124257969.

It is an arithmetic number, because the mean of its divisors is an integer number (4846054863).

Almost surely, 238022891849 is an apocalyptic number.

It is an amenable number.

38022891849 is a deficient number, since it is larger than the sum of its proper divisors (20129766507).

38022891849 is a wasteful number, since it uses less digits than its factorization.

38022891849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248515656 (or 248515653 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 54.

The spelling of 38022891849 in words is "thirty-eight billion, twenty-two million, eight hundred ninety-one thousand, eight hundred forty-nine".

Divisors: 1 3 9 17 51 153 248515633 745546899 2236640697 4224765761 12674297283 38022891849