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38336857901 = 735579712
BaseRepresentation
bin100011101101000011…
…100000011100101101
310122221202120011102222
4203231003200130231
51112003213423101
625340043525125
72525010626006
oct435503403455
9118852504388
1038336857901
111529317a841
12751ab297a5
1337cc63c604
141bd975c1ad
15ee59b401b
hex8ed0e072d

38336857901 has 12 divisors (see below), whose sum is σ = 38971926396. Its totient is φ = 37704939840.

The previous prime is 38336857847. The next prime is 38336857969. The reversal of 38336857901 is 10975863383.

It can be written as a sum of positive squares in 2 ways, for example, as 11408376100 + 26928481801 = 106810^2 + 164099^2 .

It is not a de Polignac number, because 38336857901 - 222 = 38332663597 is a prime.

It is a super-2 number, since 2×383368579012 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38336857201) 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, 39481346 + ... + 39482316.

It is an arithmetic number, because the mean of its divisors is an integer number (3247660533).

Almost surely, 238336857901 is an apocalyptic number.

It is an amenable number.

38336857901 is a deficient number, since it is larger than the sum of its proper divisors (635068495).

38336857901 is an frugal number, since it uses more digits than its factorization.

38336857901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2572 (or 1601 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 53.

The spelling of 38336857901 in words is "thirty-eight billion, three hundred thirty-six million, eight hundred fifty-seven thousand, nine hundred one".

Divisors: 1 73 557 971 40661 70883 540847 942841 39481831 68827393 525162437 38336857901