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15047843140 = 2251126218117
BaseRepresentation
bin11100000001110101…
…11101110101000100
31102211201011122010201
432000322331311010
5221304221440030
610525103300244
71041620361541
oct160072756504
942751148121
1015047843140
11642212a300
122abb5aa684
13155a72a7c5
14a2a719bc8
155d11152ca
hex380ebdd44

15047843140 has 36 divisors (see below), whose sum is σ = 34734407148. Its totient is φ = 5471942080.

The previous prime is 15047843113. The next prime is 15047843141. The reversal of 15047843140 is 4134874051.

15047843140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 1778646276 + 13269196864 = 42174^2 + 115192^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 15047843140.

It is not an unprimeable number, because it can be changed into a prime (15047843141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3106639 + ... + 3111478.

It is an arithmetic number, because the mean of its divisors is an integer number (964844643).

Almost surely, 215047843140 is an apocalyptic number.

15047843140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15047843140 is an abundant number, since it is smaller than the sum of its proper divisors (19686564008).

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

15047843140 is a wasteful number, since it uses less digits than its factorization.

15047843140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6218148 (or 6218135 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 37.

The spelling of 15047843140 in words is "fifteen billion, forty-seven million, eight hundred forty-three thousand, one hundred forty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 121 220 242 484 605 1210 2420 6218117 12436234 24872468 31090585 62181170 68399287 124362340 136798574 273597148 341996435 683992870 752392157 1367985740 1504784314 3009568628 3761960785 7523921570 15047843140