Search a number
-
+
14938286420 = 2255393138497
BaseRepresentation
bin11011110100110010…
…00010100101010100
31102120002000120120102
431322121002211110
5221043200131140
610510151153232
71036120224311
oct157231024524
942502016512
1014938286420
116376300762
122a8a975818
131540b1c145
14a19d5bd08
155c66c3e15
hex37a642954

14938286420 has 24 divisors (see below), whose sum is σ = 31376444904. Its totient is φ = 5974163456.

The previous prime is 14938286413. The next prime is 14938286423. The reversal of 14938286420 is 2468283941.

It can be written as a sum of positive squares in 4 ways, for example, as 1164447376 + 13773839044 = 34124^2 + 117362^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14938286423) 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, 38612 + ... + 177108.

It is an arithmetic number, because the mean of its divisors is an integer number (1307351871).

Almost surely, 214938286420 is an apocalyptic number.

14938286420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14938286420 is an abundant number, since it is smaller than the sum of its proper divisors (16438158484).

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

14938286420 is a wasteful number, since it uses less digits than its factorization.

14938286420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143899 (or 143897 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 47.

The spelling of 14938286420 in words is "fourteen billion, nine hundred thirty-eight million, two hundred eighty-six thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 5393 10786 21572 26965 53930 107860 138497 276994 553988 692485 1384970 2769940 746914321 1493828642 2987657284 3734571605 7469143210 14938286420