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13944070 = 257296869
BaseRepresentation
bin110101001100…
…010100000110
3222020102200001
4311030110012
512032202240
61214511514
7226344160
oct65142406
928212601
1013944070
117964428
12480559a
132b72b3a
141bcd930
15135689a
hexd4c506

13944070 has 32 divisors (see below), whose sum is σ = 29678400. Its totient is φ = 4615296.

The previous prime is 13944061. The next prime is 13944103. The reversal of 13944070 is 7044931.

It is a plaindrome in base 15.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1405 + ... + 5464.

It is an arithmetic number, because the mean of its divisors is an integer number (927450).

Almost surely, 213944070 is an apocalyptic number.

13944070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13944070 is an abundant number, since it is smaller than the sum of its proper divisors (15734330).

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

13944070 is a wasteful number, since it uses less digits than its factorization.

13944070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6912.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 13944070 is about 3734.1759465778. The cubic root of 13944070 is about 240.6928474557.

The spelling of 13944070 in words is "thirteen million, nine hundred forty-four thousand, seventy".

Divisors: 1 2 5 7 10 14 29 35 58 70 145 203 290 406 1015 2030 6869 13738 34345 48083 68690 96166 199201 240415 398402 480830 996005 1394407 1992010 2788814 6972035 13944070