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38381456705 = 549191560539
BaseRepresentation
bin100011101111101101…
…101000110101000001
310200001212111000111112
4203233231220311001
51112101123103310
625344315453105
72526061666454
oct435755506501
9120055430445
1038381456705
1115306371559
127531a57195
133808956437
141c0164b49b
15ee9873705
hex8efb68d41

38381456705 has 8 divisors (see below), whose sum is σ = 46067140800. Its totient is φ = 30698903536.

The previous prime is 38381456669. The next prime is 38381456719. The reversal of 38381456705 is 50765418383.

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 38381456705 - 222 = 38377262401 is a prime.

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

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 755675 + ... + 804864.

It is an arithmetic number, because the mean of its divisors is an integer number (5758392600).

Almost surely, 238381456705 is an apocalyptic number.

It is an amenable number.

38381456705 is a deficient number, since it is larger than the sum of its proper divisors (7685684095).

38381456705 is a wasteful number, since it uses less digits than its factorization.

38381456705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1565463.

The product of its (nonzero) digits is 2419200, while the sum is 50.

The spelling of 38381456705 in words is "thirty-eight billion, three hundred eighty-one million, four hundred fifty-six thousand, seven hundred five".

Divisors: 1 5 4919 24595 1560539 7802695 7676291341 38381456705