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13202139 = 342110453
BaseRepresentation
bin110010010111…
…001011011011
3220211201221010
4302113023123
511334432024
61150545003
7220134126
oct62271333
926751833
1013202139
1174a7a65
124508163
132973222
141a793bd
15125bb29
hexc972db

13202139 has 8 divisors (see below), whose sum is σ = 17646352. Its totient is φ = 8779680.

The previous prime is 13202117. The next prime is 13202143. The reversal of 13202139 is 93120231.

It is a happy number.

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

It is not a de Polignac number, because 13202139 - 25 = 13202107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13202179) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3964 + ... + 6489.

It is an arithmetic number, because the mean of its divisors is an integer number (2205794).

Almost surely, 213202139 is an apocalyptic number.

13202139 is a deficient number, since it is larger than the sum of its proper divisors (4444213).

13202139 is a wasteful number, since it uses less digits than its factorization.

13202139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10877.

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 13202139 is about 3633.4747831793. The cubic root of 13202139 is about 236.3459149749.

The spelling of 13202139 in words is "thirteen million, two hundred two thousand, one hundred thirty-nine".

Divisors: 1 3 421 1263 10453 31359 4400713 13202139