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13966120 = 2357311609
BaseRepresentation
bin110101010001…
…101100101000
3222021112220201
4311101230220
512033403440
61215201544
7226465360
oct65215450
928245821
1013966120
117979a53
1248162b4
132b7cb9c
141bd79a0
15135d19a
hexd51b28

13966120 has 64 divisors (see below), whose sum is σ = 37094400. Its totient is φ = 4631040.

The previous prime is 13966103. The next prime is 13966153. The reversal of 13966120 is 2166931.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7876 + ... + 9484.

It is an arithmetic number, because the mean of its divisors is an integer number (579600).

Almost surely, 213966120 is an apocalyptic number.

13966120 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 13966120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18547200).

13966120 is an abundant number, since it is smaller than the sum of its proper divisors (23128280).

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

13966120 is a wasteful number, since it uses less digits than its factorization.

13966120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1658 (or 1654 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 13966120 is about 3737.1272389363. The cubic root of 13966120 is about 240.8196512331.

The spelling of 13966120 in words is "thirteen million, nine hundred sixty-six thousand, one hundred twenty".

Divisors: 1 2 4 5 7 8 10 14 20 28 31 35 40 56 62 70 124 140 155 217 248 280 310 434 620 868 1085 1240 1609 1736 2170 3218 4340 6436 8045 8680 11263 12872 16090 22526 32180 45052 49879 56315 64360 90104 99758 112630 199516 225260 249395 349153 399032 450520 498790 698306 997580 1396612 1745765 1995160 2793224 3491530 6983060 13966120