Search a number
-
+
38875251 = 347275711
BaseRepresentation
bin1001010001001…
…1000001110011
32201011001211010
42110103001303
534423002001
63505122003
7651301632
oct224230163
981131733
1038875251
111aa42608
1211029303
13809190c
14523d519
15362d8d6
hex2513073

38875251 has 8 divisors (see below), whose sum is σ = 52936704. Its totient is φ = 25365320.

The previous prime is 38875237. The next prime is 38875259. The reversal of 38875251 is 15257883.

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

It is a cyclic number.

It is not a de Polignac number, because 38875251 - 29 = 38874739 is a prime.

It is a super-2 number, since 2×388752512 = 3022570280626002, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (38875259) 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, 137715 + ... + 137996.

It is an arithmetic number, because the mean of its divisors is an integer number (6617088).

Almost surely, 238875251 is an apocalyptic number.

38875251 is a deficient number, since it is larger than the sum of its proper divisors (14061453).

38875251 is a wasteful number, since it uses less digits than its factorization.

38875251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275761.

The product of its digits is 67200, while the sum is 39.

The square root of 38875251 is about 6235.0020850037. The cubic root of 38875251 is about 338.7591766871.

The spelling of 38875251 in words is "thirty-eight million, eight hundred seventy-five thousand, two hundred fifty-one".

Divisors: 1 3 47 141 275711 827133 12958417 38875251