Search a number
-
+
1872148868 = 221738637127
BaseRepresentation
bin110111110010110…
…1011100110000100
311211110210000102222
41233211223212010
512313232230433
6505434351512
764252000652
oct15745534604
94743700388
101872148868
11880863177
12442b8b598
1323ab319c5
1413a8d7dd2
15ae55ab98
hex6f96b984

1872148868 has 24 divisors (see below), whose sum is σ = 3470366592. Its totient is φ = 880659584.

The previous prime is 1872148849. The next prime is 1872148879. The reversal of 1872148868 is 8688412781.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 259121 + ... + 266247.

It is an arithmetic number, because the mean of its divisors is an integer number (144598608).

Almost surely, 21872148868 is an apocalyptic number.

It is an amenable number.

1872148868 is a deficient number, since it is larger than the sum of its proper divisors (1598217724).

1872148868 is a wasteful number, since it uses less digits than its factorization.

1872148868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11011 (or 11009 counting only the distinct ones).

The product of its digits is 1376256, while the sum is 53.

The square root of 1872148868 is about 43268.3356278006. The cubic root of 1872148868 is about 1232.4806982126.

The spelling of 1872148868 in words is "one billion, eight hundred seventy-two million, one hundred forty-eight thousand, eight hundred sixty-eight".

Divisors: 1 2 4 17 34 68 3863 7127 7726 14254 15452 28508 65671 121159 131342 242318 262684 484636 27531601 55063202 110126404 468037217 936074434 1872148868