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13498720 = 255239353
BaseRepresentation
bin110011011111…
…100101100000
3221101210202121
4303133211200
511423424340
61201154024
7222510604
oct63374540
927353677
1013498720
11768a874
12462b914
132a48211
141b15504
1512b994a
hexcdf960

13498720 has 48 divisors (see below), whose sum is σ = 32114880. Its totient is φ = 5361664.

The previous prime is 13498687. The next prime is 13498739. The reversal of 13498720 is 2789431.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38064 + ... + 38416.

It is an arithmetic number, because the mean of its divisors is an integer number (669060).

Almost surely, 213498720 is an apocalyptic number.

13498720 is a gapful number since it is divisible by the number (10) 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 13498720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16057440).

13498720 is an abundant number, since it is smaller than the sum of its proper divisors (18616160).

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

13498720 is a wasteful number, since it uses less digits than its factorization.

13498720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 607 (or 599 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 13498720 is about 3674.0604241085. The cubic root of 13498720 is about 238.1026321005.

The spelling of 13498720 in words is "thirteen million, four hundred ninety-eight thousand, seven hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 160 239 353 478 706 956 1195 1412 1765 1912 2390 2824 3530 3824 4780 5648 7060 7648 9560 11296 14120 19120 28240 38240 56480 84367 168734 337468 421835 674936 843670 1349872 1687340 2699744 3374680 6749360 13498720