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38383370081 = 75483338583
BaseRepresentation
bin100011101111110100…
…111011111101100001
310200002000002020011022
4203233310323331201
51112102120320311
625344424455225
72526114156020
oct435764737541
9120060066138
1038383370081
1115307459061
12753261a515
133809176304
141c019c88b7
15ee9b005db
hex8efd3bf61

38383370081 has 4 divisors (see below), whose sum is σ = 43866708672. Its totient is φ = 32900031492.

The previous prime is 38383370021. The next prime is 38383370131. The reversal of 38383370081 is 18007338383.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 38383370081 - 26 = 38383370017 is a prime.

It is a super-2 number, since 2×383833700812 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38383370021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2741669285 + ... + 2741669298.

It is an arithmetic number, because the mean of its divisors is an integer number (10966677168).

Almost surely, 238383370081 is an apocalyptic number.

It is an amenable number.

38383370081 is a deficient number, since it is larger than the sum of its proper divisors (5483338591).

38383370081 is an equidigital number, since it uses as much as digits as its factorization.

38383370081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5483338590.

The product of its (nonzero) digits is 290304, while the sum is 44.

The spelling of 38383370081 in words is "thirty-eight billion, three hundred eighty-three million, three hundred seventy thousand, eighty-one".

Divisors: 1 7 5483338583 38383370081