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15050140 = 2257193557
BaseRepresentation
bin111001011010…
…010110011100
31001022121220121
4321122112130
512323101030
61254324324
7241631650
oct71322634
931277817
1015050140
11854a436
1250596a4
13316c411
141ddaa60
1514c447a
hexe5a59c

15050140 has 48 divisors (see below), whose sum is σ = 36372672. Its totient is φ = 5124096.

The previous prime is 15050137. The next prime is 15050149. The reversal of 15050140 is 4105051.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15050149) by changing a digit.

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, 26742 + ... + 27298.

It is an arithmetic number, because the mean of its divisors is an integer number (757764).

Almost surely, 215050140 is an apocalyptic number.

15050140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15050140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18186336).

15050140 is an abundant number, since it is smaller than the sum of its proper divisors (21322532).

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

15050140 is a wasteful number, since it uses less digits than its factorization.

15050140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 766 (or 764 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 16.

The square root of 15050140 is about 3879.4509920864. The cubic root of 15050140 is about 246.8956926521.

Adding to 15050140 its reverse (4105051), we get a palindrome (19155191).

The spelling of 15050140 in words is "fifteen million, fifty thousand, one hundred forty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 193 386 557 772 965 1114 1351 1930 2228 2702 2785 3860 3899 5404 5570 6755 7798 11140 13510 15596 19495 27020 38990 77980 107501 215002 430004 537505 752507 1075010 1505014 2150020 3010028 3762535 7525070 15050140