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38243358815 = 531372733613
BaseRepresentation
bin100011100111011110…
…110101100001011111
310122201020121220210212
4203213132311201133
51111310244440230
625322503523035
72522464120634
oct434736654137
9118636556725
1038243358815
1115245419572
1274b375947b
1337b6163acc
141bcb18018b
15edc695895
hex8e77b585f

38243358815 has 16 divisors (see below), whose sum is σ = 46103348928. Its totient is φ = 30454085376.

The previous prime is 38243358781. The next prime is 38243358833. The reversal of 38243358815 is 51885334283.

It is a cyclic number.

It is not a de Polignac number, because 38243358815 - 210 = 38243357791 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1120949 + ... + 1154561.

It is an arithmetic number, because the mean of its divisors is an integer number (2881459308).

Almost surely, 238243358815 is an apocalyptic number.

38243358815 is a deficient number, since it is larger than the sum of its proper divisors (7859990113).

38243358815 is a wasteful number, since it uses less digits than its factorization.

38243358815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34658.

The product of its digits is 2764800, while the sum is 50.

The spelling of 38243358815 in words is "thirty-eight billion, two hundred forty-three million, three hundred fifty-eight thousand, eight hundred fifteen".

Divisors: 1 5 313 727 1565 3635 33613 168065 227551 1137755 10520869 24436651 52604345 122183255 7648671763 38243358815