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13661101 = 167179457
BaseRepresentation
bin110100000111…
…001110101101
3221201001111201
4310013032231
511444123401
61204445501
7224055166
oct64071655
927631451
1013661101
117790873
1246a9891
132aa40bc
141b5876d
1512ecb01
hexd073ad

13661101 has 8 divisors (see below), whose sum is σ = 13849920. Its totient is φ = 13473888.

The previous prime is 13661083. The next prime is 13661191. The reversal of 13661101 is 10116631.

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 13661101 - 29 = 13660589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13661191) 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 7 ways as a sum of consecutive naturals, for example, 29665 + ... + 30121.

It is an arithmetic number, because the mean of its divisors is an integer number (1731240).

Almost surely, 213661101 is an apocalyptic number.

It is an amenable number.

13661101 is a deficient number, since it is larger than the sum of its proper divisors (188819).

13661101 is a wasteful number, since it uses less digits than its factorization.

13661101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 803.

The product of its (nonzero) digits is 108, while the sum is 19.

The square root of 13661101 is about 3696.0926665872. The cubic root of 13661101 is about 239.0535701536.

Adding to 13661101 its reverse (10116631), we get a palindrome (23777732).

The spelling of 13661101 in words is "thirteen million, six hundred sixty-one thousand, one hundred one".

Divisors: 1 167 179 457 29893 76319 81803 13661101