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13770848 = 257134729
BaseRepresentation
bin110100100010…
…000001100000
3221220122001102
4310202001200
512011131343
61211053532
7225023150
oct64420140
927818042
1013770848
117856273
1247412a8
132b12040
141b86760
1513203b8
hexd22060

13770848 has 48 divisors (see below), whose sum is σ = 33374880. Its totient is φ = 5446656.

The previous prime is 13770821. The next prime is 13770863. The reversal of 13770848 is 84807731.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 548 + ... + 5276.

It is an arithmetic number, because the mean of its divisors is an integer number (695310).

Almost surely, 213770848 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 13770848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16687440).

13770848 is an abundant number, since it is smaller than the sum of its proper divisors (19604032).

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

13770848 is a wasteful number, since it uses less digits than its factorization.

13770848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4759 (or 4751 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 38.

The square root of 13770848 is about 3710.9093225246. The cubic root of 13770848 is about 239.6920123415.

The spelling of 13770848 in words is "thirteen million, seven hundred seventy thousand, eight hundred forty-eight".

Divisors: 1 2 4 7 8 13 14 16 26 28 32 52 56 91 104 112 182 208 224 364 416 728 1456 2912 4729 9458 18916 33103 37832 61477 66206 75664 122954 132412 151328 245908 264824 430339 491816 529648 860678 983632 1059296 1721356 1967264 3442712 6885424 13770848