Search a number
-
+
138544846 = 21119331447
BaseRepresentation
bin10000100001000…
…00011011001110
3100122200210210121
420100200123032
5240431413341
621425255154
73301416556
oct1020403316
9318623717
10138544846
1171228880
123a4944ba
132291abcb
1414586166
15c26a4d1
hex84206ce

138544846 has 16 divisors (see below), whose sum is σ = 238642560. Its totient is φ = 59660280.

The previous prime is 138544843. The next prime is 138544867. The reversal of 138544846 is 648445831.

138544846 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138544843) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 165306 + ... + 166141.

It is an arithmetic number, because the mean of its divisors is an integer number (14915160).

Almost surely, 2138544846 is an apocalyptic number.

138544846 is a deficient number, since it is larger than the sum of its proper divisors (100097714).

138544846 is a wasteful number, since it uses less digits than its factorization.

138544846 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331479.

The product of its digits is 368640, while the sum is 43.

The square root of 138544846 is about 11770.5074656958. The cubic root of 138544846 is about 517.4441222622. Note that the first 3 decimals are identical.

The spelling of 138544846 in words is "one hundred thirty-eight million, five hundred forty-four thousand, eight hundred forty-six".

Divisors: 1 2 11 19 22 38 209 418 331447 662894 3645917 6297493 7291834 12594986 69272423 138544846