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13001208 = 23311437
BaseRepresentation
bin110001100110…
…000111111000
3220110112022020
4301212013320
511312014313
61142354440
7215336253
oct61460770
926415266
1013001208
117380000
12442ba20
13290292c
141a2609a
15121c323
hexc661f8

13001208 has 80 divisors (see below), whose sum is σ = 36719400. Its totient is φ = 3833280.

The previous prime is 13001173. The next prime is 13001213. The reversal of 13001208 is 80210031.

It is a happy number.

13001208 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 351366 + ... + 351402.

Almost surely, 213001208 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 13001208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18359700).

13001208 is an abundant number, since it is smaller than the sum of its proper divisors (23718192).

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

13001208 is an equidigital number, since it uses as much as digits as its factorization.

13001208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90 (or 53 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 13001208 is about 3605.7187910318. The cubic root of 13001208 is about 235.1407516550.

Adding to 13001208 its reverse (80210031), we get a palindrome (93211239).

The spelling of 13001208 in words is "thirteen million, one thousand, two hundred eight".

Divisors: 1 2 3 4 6 8 11 12 22 24 33 37 44 66 74 88 111 121 132 148 222 242 264 296 363 407 444 484 726 814 888 968 1221 1331 1452 1628 2442 2662 2904 3256 3993 4477 4884 5324 7986 8954 9768 10648 13431 14641 15972 17908 26862 29282 31944 35816 43923 49247 53724 58564 87846 98494 107448 117128 147741 175692 196988 295482 351384 393976 541717 590964 1083434 1181928 1625151 2166868 3250302 4333736 6500604 13001208