Search a number
-
+
13738731420 = 2235228978857
BaseRepresentation
bin11001100101110010…
…00110011110011100
31022110110211212110110
430302321012132130
5211114103401140
610151140410020
7664313201361
oct146271063634
938413755413
1013738731420
115910179297
1227b50a6910
1313ac45239b
14944906468
15556225380
hex332e4679c

13738731420 has 24 divisors (see below), whose sum is σ = 38468448144. Its totient is φ = 3663661696.

The previous prime is 13738731401. The next prime is 13738731467. The reversal of 13738731420 is 2413783731.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114489369 + ... + 114489488.

It is an arithmetic number, because the mean of its divisors is an integer number (1602852006).

Almost surely, 213738731420 is an apocalyptic number.

13738731420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13738731420 is an abundant number, since it is smaller than the sum of its proper divisors (24729716724).

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

13738731420 is a wasteful number, since it uses less digits than its factorization.

13738731420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228978869 (or 228978867 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 39.

The spelling of 13738731420 in words is "thirteen billion, seven hundred thirty-eight million, seven hundred thirty-one thousand, four hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 228978857 457957714 686936571 915915428 1144894285 1373873142 2289788570 2747746284 3434682855 4579577140 6869365710 13738731420