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13440854 = 274383269
BaseRepresentation
bin110011010001…
…011101010110
3221021212101102
4303101131112
511420101404
61200030102
7222150110
oct63213526
927255342
1013440854
117650349
124602332
132a27a8b
141adc3b0
1512a771e
hexcd1756

13440854 has 32 divisors (see below), whose sum is σ = 23950080. Its totient is φ = 5537952.

The previous prime is 13440839. The next prime is 13440857. The reversal of 13440854 is 45804431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13440857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49832 + ... + 50100.

It is an arithmetic number, because the mean of its divisors is an integer number (748440).

Almost surely, 213440854 is an apocalyptic number.

13440854 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

13440854 is a deficient number, since it is larger than the sum of its proper divisors (10509226).

13440854 is a wasteful number, since it uses less digits than its factorization.

13440854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404.

The product of its (nonzero) digits is 7680, while the sum is 29.

The square root of 13440854 is about 3666.1770279134. The cubic root of 13440854 is about 237.7619138266.

The spelling of 13440854 in words is "thirteen million, four hundred forty thousand, eight hundred fifty-four".

Divisors: 1 2 7 14 43 83 86 166 269 301 538 581 602 1162 1883 3569 3766 7138 11567 22327 23134 24983 44654 49966 80969 156289 161938 312578 960061 1920122 6720427 13440854