Search a number
-
+
38442894 = 2371496143
BaseRepresentation
bin1001001010100…
…1011110001110
32200100002201220
42102221132032
534320133034
63451544210
7644521260
oct222513616
980302656
1038442894
111a777796
1210a5b066
137c6cb99
145169b30
153595749
hex24a978e

38442894 has 32 divisors (see below), whose sum is σ = 88473600. Its totient is φ = 10908192.

The previous prime is 38442881. The next prime is 38442941. The reversal of 38442894 is 49824483.

38442894 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3187 + ... + 9329.

It is an arithmetic number, because the mean of its divisors is an integer number (2764800).

Almost surely, 238442894 is an apocalyptic number.

38442894 is an abundant number, since it is smaller than the sum of its proper divisors (50030706).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

38442894 is a wasteful number, since it uses less digits than its factorization.

38442894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6304.

The product of its digits is 221184, while the sum is 42.

The square root of 38442894 is about 6200.2333827042. The cubic root of 38442894 is about 337.4986381289.

The spelling of 38442894 in words is "thirty-eight million, four hundred forty-two thousand, eight hundred ninety-four".

Divisors: 1 2 3 6 7 14 21 42 149 298 447 894 1043 2086 3129 6143 6258 12286 18429 36858 43001 86002 129003 258006 915307 1830614 2745921 5491842 6407149 12814298 19221447 38442894