Search a number
-
+
1386869532 = 223745115511
BaseRepresentation
bin101001010101001…
…1111001100011100
310120122122021100020
41102222133030130
510320014311112
6345341232140
746240124256
oct12252371434
93518567306
101386869532
11651940674
12328562650
13191432079
14d2294cd6
1581b4e48c
hex52a9f31c

1386869532 has 24 divisors (see below), whose sum is σ = 3236671872. Its totient is φ = 462198000.

The previous prime is 1386869531. The next prime is 1386869543. The reversal of 1386869532 is 2359686831.

It is a happy number.

1386869532 is digitally balanced in base 4, 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 (1386869531) 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, 81657 + ... + 97167.

It is an arithmetic number, because the mean of its divisors is an integer number (134861328).

Almost surely, 21386869532 is an apocalyptic number.

1386869532 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1386869532 is an abundant number, since it is smaller than the sum of its proper divisors (1849802340).

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

1386869532 is a wasteful number, since it uses less digits than its factorization.

1386869532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22969 (or 22967 counting only the distinct ones).

The product of its digits is 1866240, while the sum is 51.

The square root of 1386869532 is about 37240.6972544822. The cubic root of 1386869532 is about 1115.1805915804.

The spelling of 1386869532 in words is "one billion, three hundred eighty-six million, eight hundred sixty-nine thousand, five hundred thirty-two".

Divisors: 1 2 3 4 6 12 7451 14902 15511 22353 29804 31022 44706 46533 62044 89412 93066 186132 115572461 231144922 346717383 462289844 693434766 1386869532