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13961073 = 371813673
BaseRepresentation
bin110101010000…
…011101110001
3222021021222210
4311100131301
512033223243
61215122333
7226444560
oct65203561
928237883
1013961073
117976185
1248133a9
132b7a7b9
141bd5bd7
15135b933
hexd50771

13961073 has 16 divisors (see below), whose sum is σ = 21397376. Its totient is φ = 7931520.

The previous prime is 13961071. The next prime is 13961083. The reversal of 13961073 is 37016931.

13961073 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13961073 - 21 = 13961071 is a prime.

It is a super-2 number, since 2×139610732 = 389823118622658, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13961073.

It is not an unprimeable number, because it can be changed into a prime (13961071) 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, 1965 + ... + 5637.

It is an arithmetic number, because the mean of its divisors is an integer number (1337336).

Almost surely, 213961073 is an apocalyptic number.

It is an amenable number.

13961073 is a deficient number, since it is larger than the sum of its proper divisors (7436303).

13961073 is a wasteful number, since it uses less digits than its factorization.

13961073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3864.

The product of its (nonzero) digits is 3402, while the sum is 30.

The square root of 13961073 is about 3736.4519266277. The cubic root of 13961073 is about 240.7906390422.

The spelling of 13961073 in words is "thirteen million, nine hundred sixty-one thousand, seventy-three".

Divisors: 1 3 7 21 181 543 1267 3673 3801 11019 25711 77133 664813 1994439 4653691 13961073