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38875971 = 361212437
BaseRepresentation
bin1001010001001…
…1001101000011
32201011002210210
42110103031003
534423012341
63505125203
7651304011
oct224231503
981132723
1038875971
111aa43102
1211029803
138092044
14523d8b1
15362dc16
hex2513343

38875971 has 8 divisors (see below), whose sum is σ = 52684624. Its totient is φ = 25492320.

The previous prime is 38875961. The next prime is 38875973. The reversal of 38875971 is 17957883.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 38875971 - 213 = 38867779 is a prime.

It is a super-2 number, since 2×388759712 = 3022682242385682, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 38875971.

It is not an unprimeable number, because it can be changed into a prime (38875973) 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 7 ways as a sum of consecutive naturals, for example, 106036 + ... + 106401.

It is an arithmetic number, because the mean of its divisors is an integer number (6585578).

Almost surely, 238875971 is an apocalyptic number.

38875971 is a deficient number, since it is larger than the sum of its proper divisors (13808653).

38875971 is a wasteful number, since it uses less digits than its factorization.

38875971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212501.

The product of its digits is 423360, while the sum is 48.

The square root of 38875971 is about 6235.0598232896. The cubic root of 38875971 is about 338.7612680357.

The spelling of 38875971 in words is "thirty-eight million, eight hundred seventy-five thousand, nine hundred seventy-one".

Divisors: 1 3 61 183 212437 637311 12958657 38875971