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13967648 = 253747251
BaseRepresentation
bin110101010010…
…000100100000
3222021122000022
4311102010200
512033431043
61215213012
7226503002
oct65220440
928248008
1013967648
117980112
124817168
132b807a6
141bd8372
15135d868
hexd52120

13967648 has 48 divisors (see below), whose sum is σ = 28957824. Its totient is φ = 6624000.

The previous prime is 13967623. The next prime is 13967683. The reversal of 13967648 is 84676931.

It is a junction number, because it is equal to n+sod(n) for n = 13967599 and 13967608.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55523 + ... + 55773.

It is an arithmetic number, because the mean of its divisors is an integer number (603288).

Almost surely, 213967648 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 13967648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14478912).

13967648 is an abundant number, since it is smaller than the sum of its proper divisors (14990176).

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

13967648 is a wasteful number, since it uses less digits than its factorization.

13967648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345 (or 337 counting only the distinct ones).

The product of its digits is 217728, while the sum is 44.

The square root of 13967648 is about 3737.3316684501. The cubic root of 13967648 is about 240.8284334147.

The spelling of 13967648 in words is "thirteen million, nine hundred sixty-seven thousand, six hundred forty-eight".

Divisors: 1 2 4 8 16 32 37 47 74 94 148 188 251 296 376 502 592 752 1004 1184 1504 1739 2008 3478 4016 6956 8032 9287 11797 13912 18574 23594 27824 37148 47188 55648 74296 94376 148592 188752 297184 377504 436489 872978 1745956 3491912 6983824 13967648