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38492345429 = 162123746049
BaseRepresentation
bin100011110110010100…
…101001010001010101
310200100121010202020022
4203312110221101111
51112313020023204
625403320314525
72531606352266
oct436624512125
9120317122208
1038492345429
1115362a1a92a
127563012a45
133825910175
141c1227496d
1510044795be
hex8f6529455

38492345429 has 4 divisors (see below), whose sum is σ = 38516093100. Its totient is φ = 38468597760.

The previous prime is 38492345401. The next prime is 38492345443. The reversal of 38492345429 is 92454329483.

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 23963659204 + 14528686225 = 154802^2 + 120535^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-38492345429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38492345459) 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 3 ways as a sum of consecutive naturals, for example, 11871404 + ... + 11874645.

It is an arithmetic number, because the mean of its divisors is an integer number (9629023275).

Almost surely, 238492345429 is an apocalyptic number.

It is an amenable number.

38492345429 is a deficient number, since it is larger than the sum of its proper divisors (23747671).

38492345429 is a wasteful number, since it uses less digits than its factorization.

38492345429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23747670.

The product of its digits is 7464960, while the sum is 53.

The spelling of 38492345429 in words is "thirty-eight billion, four hundred ninety-two million, three hundred forty-five thousand, four hundred twenty-nine".

Divisors: 1 1621 23746049 38492345429