Search a number
-
+
15139932 = 2231319631
BaseRepresentation
bin111001110000…
…010001011100
31001111012002020
4321300101130
512333434212
61300300140
7242454513
oct71602134
931435066
1015139932
118600945
1250a1650
1331a1252
14202167a
1514e0d8c
hexe7045c

15139932 has 24 divisors (see below), whose sum is σ = 35599872. Its totient is φ = 5007600.

The previous prime is 15139921. The next prime is 15139937. The reversal of 15139932 is 23993151.

It is a junction number, because it is equal to n+sod(n) for n = 15139893 and 15139902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15139937) 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, 3244 + ... + 6387.

It is an arithmetic number, because the mean of its divisors is an integer number (1483328).

Almost surely, 215139932 is an apocalyptic number.

15139932 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

15139932 is an abundant number, since it is smaller than the sum of its proper divisors (20459940).

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

15139932 is a wasteful number, since it uses less digits than its factorization.

15139932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9769 (or 9767 counting only the distinct ones).

The product of its digits is 7290, while the sum is 33.

The square root of 15139932 is about 3891.0065535797. The cubic root of 15139932 is about 247.3857282912.

The spelling of 15139932 in words is "fifteen million, one hundred thirty-nine thousand, nine hundred thirty-two".

Divisors: 1 2 3 4 6 12 131 262 393 524 786 1572 9631 19262 28893 38524 57786 115572 1261661 2523322 3784983 5046644 7569966 15139932