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13013308 = 22711223167
BaseRepresentation
bin110001101001…
…000100111100
3220111010220101
4301221010330
511312411213
61142530444
7215416450
oct61510474
926433811
1013013308
117389100
124436a24
1329082a9
141a2a660
151220bdd
hexc6913c

13013308 has 72 divisors (see below), whose sum is σ = 30030336. Its totient is φ = 4820640.

The previous prime is 13013303. The next prime is 13013317. The reversal of 13013308 is 80331031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13013303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 77841 + ... + 78007.

It is an arithmetic number, because the mean of its divisors is an integer number (417088).

Almost surely, 213013308 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13013308, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15015168).

13013308 is an abundant number, since it is smaller than the sum of its proper divisors (17017028).

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

13013308 is a wasteful number, since it uses less digits than its factorization.

13013308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223 (or 210 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 13013308 is about 3607.3962909556. The cubic root of 13013308 is about 235.2136761835.

Adding to 13013308 its reverse (80331031), we get a palindrome (93344339).

It can be divided in two parts, 13013 and 308, that multiplied together give a palindrome (4008004).

The spelling of 13013308 in words is "thirteen million, thirteen thousand, three hundred eight".

Divisors: 1 2 4 7 11 14 22 23 28 44 46 77 92 121 154 161 167 242 253 308 322 334 484 506 644 668 847 1012 1169 1694 1771 1837 2338 2783 3388 3542 3674 3841 4676 5566 7084 7348 7682 11132 12859 15364 19481 20207 25718 26887 38962 40414 42251 51436 53774 77924 80828 84502 107548 141449 169004 282898 295757 464761 565796 591514 929522 1183028 1859044 3253327 6506654 13013308