Search a number
-
+
13671022420 = 2251182974959
BaseRepresentation
bin11001011101101101…
…10011111101010100
31022021202102220011201
430232312303331110
5210444240204140
610140321242244
7662531526136
oct145666637524
938252386151
1013671022420
115885a32540
122796493384
13139b4065a3
1493991d056
155502ed49a
hex32edb3f54

13671022420 has 48 divisors (see below), whose sum is σ = 31357267200. Its totient is φ = 4965217920.

The previous prime is 13671022397. The next prime is 13671022429. The reversal of 13671022420 is 2422017631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13671022429) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 144901 + ... + 219859.

It is an arithmetic number, because the mean of its divisors is an integer number (653276400).

Almost surely, 213671022420 is an apocalyptic number.

13671022420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13671022420 is an abundant number, since it is smaller than the sum of its proper divisors (17686244780).

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

13671022420 is a wasteful number, since it uses less digits than its factorization.

13671022420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75808 (or 75806 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

The spelling of 13671022420 in words is "thirteen billion, six hundred seventy-one million, twenty-two thousand, four hundred twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 829 1658 3316 4145 8290 9119 16580 18238 36476 45595 74959 91190 149918 182380 299836 374795 749590 824549 1499180 1649098 3298196 4122745 8245490 16490980 62141011 124282022 248564044 310705055 621410110 683551121 1242820220 1367102242 2734204484 3417755605 6835511210 13671022420