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13002155 = 515111721
BaseRepresentation
bin110001100110…
…010110101011
3220110120121022
4301212112223
511312032110
61142403055
7215342105
oct61462653
926416538
1013002155
117380791
12443048b
1329031aa
141a26575
15121c755
hexc665ab

13002155 has 8 divisors (see below), whose sum is σ = 15621984. Its totient is φ = 10388800.

The previous prime is 13002149. The next prime is 13002163. The reversal of 13002155 is 55120031.

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

It is not a de Polignac number, because 13002155 - 24 = 13002139 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 6695 + ... + 8415.

It is an arithmetic number, because the mean of its divisors is an integer number (1952748).

Almost surely, 213002155 is an apocalyptic number.

13002155 is a deficient number, since it is larger than the sum of its proper divisors (2619829).

13002155 is a wasteful number, since it uses less digits than its factorization.

13002155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3237.

The product of its (nonzero) digits is 150, while the sum is 17.

The square root of 13002155 is about 3605.8501078109. The cubic root of 13002155 is about 235.1464606856.

Adding to 13002155 its reverse (55120031), we get a palindrome (68122186).

The spelling of 13002155 in words is "thirteen million, two thousand, one hundred fifty-five".

Divisors: 1 5 1511 1721 7555 8605 2600431 13002155