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13100042 = 231211291
BaseRepresentation
bin110001111110…
…010000001010
3220122112212202
4301332100022
511323200132
61144440202
7216230354
oct61762012
926575782
1013100042
11743828a
124479062
132938907
141a500d4
15123b762
hexc7e40a

13100042 has 8 divisors (see below), whose sum is σ = 20284032. Its totient is φ = 6338700.

The previous prime is 13100039. The next prime is 13100051. The reversal of 13100042 is 24000131.

It is a happy number.

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

It is a super-2 number, since 2×131000422 = 343222200803528, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13099996 and 13100032.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 105584 + ... + 105707.

It is an arithmetic number, because the mean of its divisors is an integer number (2535504).

Almost surely, 213100042 is an apocalyptic number.

13100042 is a deficient number, since it is larger than the sum of its proper divisors (7183990).

13100042 is a wasteful number, since it uses less digits than its factorization.

13100042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211324.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 13100042 is about 3619.3980162452. The cubic root of 13100042 is about 235.7350876915.

Adding to 13100042 its reverse (24000131), we get a palindrome (37100173).

The spelling of 13100042 in words is "thirteen million, one hundred thousand, forty-two".

Divisors: 1 2 31 62 211291 422582 6550021 13100042