Search a number
-
+
13887707140 = 225694385357
BaseRepresentation
bin11001110111100010…
…11001100000000100
31022211212011121201201
430323301121200010
5211420223112030
610214021432244
71001102364046
oct147361314004
938755147651
1013887707140
115987280a1a
122836b6b684
131404282cb8
1495a605a96
155643512ca
hex33bc59804

13887707140 has 12 divisors (see below), whose sum is σ = 29164185036. Its totient is φ = 5555082848.

The previous prime is 13887707129. The next prime is 13887707149. The reversal of 13887707140 is 4170778831.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 4731513796 + 9156193344 = 68786^2 + 95688^2 .

It is not an unprimeable number, because it can be changed into a prime (13887707149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 347192659 + ... + 347192698.

It is an arithmetic number, because the mean of its divisors is an integer number (2430348753).

Almost surely, 213887707140 is an apocalyptic number.

13887707140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13887707140 is an abundant number, since it is smaller than the sum of its proper divisors (15276477896).

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

13887707140 is a wasteful number, since it uses less digits than its factorization.

13887707140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 694385366 (or 694385364 counting only the distinct ones).

The product of its (nonzero) digits is 263424, while the sum is 46.

The spelling of 13887707140 in words is "thirteen billion, eight hundred eighty-seven million, seven hundred seven thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 694385357 1388770714 2777541428 3471926785 6943853570 13887707140