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13681862 = 219360049
BaseRepresentation
bin110100001100…
…010011000110
3221202002222122
4310030103012
512000304422
61205125542
7224202545
oct64142306
927662878
1013681862
1177a5427
1246b98b2
132ab069c
141b6215c
151303d42
hexd0c4c6

13681862 has 8 divisors (see below), whose sum is σ = 21603000. Its totient is φ = 6480864.

The previous prime is 13681859. The next prime is 13681867. The reversal of 13681862 is 26818631.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13681867) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 179987 + ... + 180062.

It is an arithmetic number, because the mean of its divisors is an integer number (2700375).

Almost surely, 213681862 is an apocalyptic number.

13681862 is a deficient number, since it is larger than the sum of its proper divisors (7921138).

13681862 is a wasteful number, since it uses less digits than its factorization.

13681862 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360070.

The product of its digits is 13824, while the sum is 35.

The square root of 13681862 is about 3698.9001067885. The cubic root of 13681862 is about 239.1746067420.

It can be divided in two parts, 1368186 and 2, that multiplied together give a palindrome (2736372).

The spelling of 13681862 in words is "thirteen million, six hundred eighty-one thousand, eight hundred sixty-two".

Divisors: 1 2 19 38 360049 720098 6840931 13681862