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38830555 = 52359297
BaseRepresentation
bin1001010000100…
…0000111011011
32201001210111201
42110020013123
534420034210
63504135031
7651024421
oct224100733
981053451
1038830555
111aa11a75
1211007477
13807747a
14522b111
15362053a
hex25081db

38830555 has 24 divisors (see below), whose sum is σ = 49970592. Its totient is φ = 28909056.

The previous prime is 38830543. The next prime is 38830559. The reversal of 38830555 is 55503883.

It is not a de Polignac number, because 38830555 - 25 = 38830523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38830559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 400267 + ... + 400363.

It is an arithmetic number, because the mean of its divisors is an integer number (2082108).

Almost surely, 238830555 is an apocalyptic number.

38830555 is a deficient number, since it is larger than the sum of its proper divisors (11140037).

38830555 is an equidigital number, since it uses as much as digits as its factorization.

38830555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243 (or 184 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 37.

The square root of 38830555 is about 6231.4167730942. The cubic root of 38830555 is about 338.6292998269.

The spelling of 38830555 in words is "thirty-eight million, eight hundred thirty thousand, five hundred fifty-five".

Divisors: 1 5 23 59 97 115 295 485 1357 2231 3481 5723 6785 11155 17405 28615 80063 131629 337657 400315 658145 1688285 7766111 38830555