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13650031 = 176113163
BaseRepresentation
bin110100000100…
…100001101111
3221200111022201
4310010201233
511443300111
61204322331
7224011003
oct64044157
927614281
1013650031
11778351a
1246a33a7
132a9c055
141b54703
1512e96c1
hexd0486f

13650031 has 8 divisors (see below), whose sum is σ = 14691024. Its totient is φ = 12635520.

The previous prime is 13650029. The next prime is 13650047. The reversal of 13650031 is 13005631.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13650031 - 21 = 13650029 is a prime.

It is a super-2 number, since 2×136500312 = 372646692601922, which contains 22 as substring.

It is a Duffinian number.

It is a zygodrome in base 5.

It is a junction number, because it is equal to n+sod(n) for n = 13649990 and 13650008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13650001) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 5545 + ... + 7618.

It is an arithmetic number, because the mean of its divisors is an integer number (1836378).

Almost surely, 213650031 is an apocalyptic number.

13650031 is a deficient number, since it is larger than the sum of its proper divisors (1040993).

13650031 is a wasteful number, since it uses less digits than its factorization.

13650031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13241.

The product of its (nonzero) digits is 270, while the sum is 19.

The square root of 13650031 is about 3694.5948357026. The cubic root of 13650031 is about 238.9889819445.

Adding to 13650031 its reverse (13005631), we get a palindrome (26655662).

The spelling of 13650031 in words is "thirteen million, six hundred fifty thousand, thirty-one".

Divisors: 1 17 61 1037 13163 223771 802943 13650031