Search a number
-
+
13103403124 = 2271996725471
BaseRepresentation
bin11000011010000011…
…00001000001110100
31020211012100211212211
430031001201001310
5203313432344444
610004123223204
7642500042320
oct141501410164
936735324784
1013103403124
115614590789
122658377b04
13130a937496
148c43a4980
1551a579c34
hex30d061074

13103403124 has 48 divisors (see below), whose sum is σ = 27615723520. Its totient is φ = 5314468320.

The previous prime is 13103403059. The next prime is 13103403169. The reversal of 13103403124 is 42130430131.

It is a junction number, because it is equal to n+sod(n) for n = 13103403095 and 13103403104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 501709 + ... + 527179.

Almost surely, 213103403124 is an apocalyptic number.

13103403124 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13103403124, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13807861760).

13103403124 is an abundant number, since it is smaller than the sum of its proper divisors (14512320396).

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

13103403124 is a wasteful number, since it uses less digits than its factorization.

13103403124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26468 (or 26466 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 13103403124 its reverse (42130430131), we get a palindrome (55233833255).

The spelling of 13103403124 in words is "thirteen billion, one hundred three million, four hundred three thousand, one hundred twenty-four".

Divisors: 1 2 4 7 14 19 28 38 76 133 266 532 967 1934 3868 6769 13538 18373 25471 27076 36746 50942 73492 101884 128611 178297 257222 356594 483949 514444 713188 967898 1935796 3387643 6775286 13550572 24630457 49260914 98521828 172413199 344826398 467978683 689652796 935957366 1871914732 3275850781 6551701562 13103403124