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38401123605385 = 57680224721077
BaseRepresentation
bin10001011101100111101010…
…10101001101101110001001
312000222010000022220121011111
420232303311111031232021
520013131000120333020
6213401122130130321
711042250432656062
oct1056636525155611
9160863008817144
1038401123605385
1111265909183a82
12438248a7209a1
1318572973988a8
1496a8a5113569
15468d7c0d2d5a
hex22ecf554db89

38401123605385 has 4 divisors (see below), whose sum is σ = 46081348326468. Its totient is φ = 30720898884304.

The previous prime is 38401123605379. The next prime is 38401123605419. The reversal of 38401123605385 is 58350632110483.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 14513692179856 + 23887431425529 = 3809684^2 + 4887477^2 .

It is a cyclic number.

It is not a de Polignac number, because 38401123605385 - 223 = 38401115216777 is a prime.

It is a super-2 number, since 2×384011236053852 (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3840112360534 + ... + 3840112360543.

It is an arithmetic number, because the mean of its divisors is an integer number (11520337081617).

Almost surely, 238401123605385 is an apocalyptic number.

It is an amenable number.

38401123605385 is a deficient number, since it is larger than the sum of its proper divisors (7680224721083).

38401123605385 is an equidigital number, since it uses as much as digits as its factorization.

38401123605385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7680224721082.

The product of its (nonzero) digits is 2073600, while the sum is 49.

The spelling of 38401123605385 in words is "thirty-eight trillion, four hundred one billion, one hundred twenty-three million, six hundred five thousand, three hundred eighty-five".

Divisors: 1 5 7680224721077 38401123605385