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38160691633 = 42190642973
BaseRepresentation
bin100011100010100011…
…011111000110110001
310122111111001222202101
4203202203133012301
51111123114113013
625310352020401
72520441345511
oct434243370661
9118444058671
1038160691633
1115202796489
12748bb31701
1337a1cab70c
141bc01c1841
15ed52b68dd
hex8e28df1b1

38160691633 has 4 divisors (see below), whose sum is σ = 38251335028. Its totient is φ = 38070048240.

The previous prime is 38160691631. The next prime is 38160691637. The reversal of 38160691633 is 33619606183.

38160691633 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 8196043024 + 29964648609 = 90532^2 + 173103^2 .

It is a cyclic number.

It is not a de Polignac number, because 38160691633 - 21 = 38160691631 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38160691631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45321066 + ... + 45321907.

It is an arithmetic number, because the mean of its divisors is an integer number (9562833757).

Almost surely, 238160691633 is an apocalyptic number.

It is an amenable number.

38160691633 is a deficient number, since it is larger than the sum of its proper divisors (90643395).

38160691633 is an equidigital number, since it uses as much as digits as its factorization.

38160691633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90643394.

The product of its (nonzero) digits is 419904, while the sum is 46.

The spelling of 38160691633 in words is "thirty-eight billion, one hundred sixty million, six hundred ninety-one thousand, six hundred thirty-three".

Divisors: 1 421 90642973 38160691633