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13660033 = 47509571
BaseRepresentation
bin110100000110…
…111110000001
3221201000001011
4310012332001
511444110113
61204440521
7224052112
oct64067601
927630034
1013660033
11778aa92
1246a9141
132aa377a
141b58209
1512ec63d
hexd06f81

13660033 has 8 divisors (see below), whose sum is σ = 14002560. Its totient is φ = 13319760.

The previous prime is 13660021. The next prime is 13660043. The reversal of 13660033 is 33006631.

It is a happy number.

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 13660033 - 25 = 13660001 is a prime.

It is a super-2 number, since 2×136600332 = 373193003122178, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13659986 and 13660013.

It is not an unprimeable number, because it can be changed into a prime (13660013) 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, 23638 + ... + 24208.

It is an arithmetic number, because the mean of its divisors is an integer number (1750320).

Almost surely, 213660033 is an apocalyptic number.

It is an amenable number.

13660033 is a deficient number, since it is larger than the sum of its proper divisors (342527).

13660033 is an equidigital number, since it uses as much as digits as its factorization.

13660033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1127.

The product of its (nonzero) digits is 972, while the sum is 22.

The square root of 13660033 is about 3695.9481868663. The cubic root of 13660033 is about 239.0473404003.

Adding to 13660033 its reverse (33006631), we get a palindrome (46666664).

The spelling of 13660033 in words is "thirteen million, six hundred sixty thousand, thirty-three".

Divisors: 1 47 509 571 23923 26837 290639 13660033