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13014221 = 111973853
BaseRepresentation
bin110001101001…
…010011001101
3220111012011012
4301221103031
511312423341
61142535005
7215422223
oct61512315
926435135
1013014221
117389860
124437465
13290882c
141a2ab13
1512210eb
hexc694cd

13014221 has 16 divisors (see below), whose sum is σ = 15167040. Its totient is φ = 11041920.

The previous prime is 13014193. The next prime is 13014247. The reversal of 13014221 is 12241031.

13014221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 13014221 - 210 = 13013197 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13014196 and 13014205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13014821) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14831 + ... + 15683.

It is an arithmetic number, because the mean of its divisors is an integer number (947940).

Almost surely, 213014221 is an apocalyptic number.

13014221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13014221 is a deficient number, since it is larger than the sum of its proper divisors (2152819).

13014221 is a wasteful number, since it uses less digits than its factorization.

13014221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 956.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 13014221 is about 3607.5228343006. The cubic root of 13014221 is about 235.2191768362.

Adding to 13014221 its reverse (12241031), we get a palindrome (25255252).

The spelling of 13014221 in words is "thirteen million, fourteen thousand, two hundred twenty-one".

Divisors: 1 11 19 73 209 803 853 1387 9383 15257 16207 62269 178277 684959 1183111 13014221