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13502080 = 27517273
BaseRepresentation
bin110011100000…
…011010000000
3221101222101001
4303200122000
511424031310
61201221344
7222523444
oct63403200
927358331
1013502080
117692349
124631854
132a498c7
141b16824
1512ba93a
hexce0680

13502080 has 96 divisors (see below), whose sum is σ = 34758540. Its totient is φ = 5013504.

The previous prime is 13502011. The next prime is 13502089. The reversal of 13502080 is 8020531.

13502080 = T355 + T356 + ... + T500.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 10086976 + 3415104 = 3176^2 + 1848^2 .

It is not an unprimeable number, because it can be changed into a prime (13502089) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 184924 + ... + 184996.

Almost surely, 213502080 is an apocalyptic number.

13502080 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 13502080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17379270).

13502080 is an abundant number, since it is smaller than the sum of its proper divisors (21256460).

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

13502080 is an equidigital number, since it uses as much as digits as its factorization.

13502080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126 (or 97 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 13502080 is about 3674.5176554209. The cubic root of 13502080 is about 238.1223860346.

The spelling of 13502080 in words is "thirteen million, five hundred two thousand, eighty".

Divisors: 1 2 4 5 8 10 16 17 20 32 34 40 64 68 73 80 85 128 136 146 160 170 272 289 292 320 340 365 544 578 584 640 680 730 1088 1156 1168 1241 1360 1445 1460 2176 2312 2336 2482 2720 2890 2920 4624 4672 4964 5440 5780 5840 6205 9248 9344 9928 10880 11560 11680 12410 18496 19856 21097 23120 23360 24820 36992 39712 42194 46240 46720 49640 79424 84388 92480 99280 105485 158848 168776 184960 198560 210970 337552 397120 421940 675104 794240 843880 1350208 1687760 2700416 3375520 6751040 13502080