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38761670545 = 513596333393
BaseRepresentation
bin100100000110011000…
…000010011110010001
310201001100220212211121
4210012120002132101
51113340441424140
625450141042241
72541356522563
oct440630023621
9121040825747
1038761670545
1115490a52874
127619256381
13386965aa40
141c39d41333
15101ce2964a
hex906602791

38761670545 has 8 divisors (see below), whose sum is σ = 50092005096. Its totient is φ = 28624002816.

The previous prime is 38761670543. The next prime is 38761670551. The reversal of 38761670545 is 54507616783.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 607080321 + 38154590224 = 24639^2 + 195332^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 38761670545 - 21 = 38761670543 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 38761670492 and 38761670501.

It is not an unprimeable number, because it can be changed into a prime (38761670543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 298166632 + ... + 298166761.

It is an arithmetic number, because the mean of its divisors is an integer number (6261500637).

Almost surely, 238761670545 is an apocalyptic number.

It is an amenable number.

38761670545 is a deficient number, since it is larger than the sum of its proper divisors (11330334551).

38761670545 is a wasteful number, since it uses less digits than its factorization.

38761670545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 596333411.

The product of its (nonzero) digits is 4233600, while the sum is 52.

The spelling of 38761670545 in words is "thirty-eight billion, seven hundred sixty-one million, six hundred seventy thousand, five hundred forty-five".

Divisors: 1 5 13 65 596333393 2981666965 7752334109 38761670545