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13480349 = 41328789
BaseRepresentation
bin110011011011…
…000110011101
3221100212120012
4303123012131
511422332344
61200533005
7222403211
oct63330635
927325505
1013480349
117677a93
124621165
132a3ca4c
141b0c941
1512b429e
hexcdb19d

13480349 has 4 divisors (see below), whose sum is σ = 13809180. Its totient is φ = 13151520.

The previous prime is 13480343. The next prime is 13480361. The reversal of 13480349 is 94308431.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 828100 + 12652249 = 910^2 + 3557^2 .

It is a cyclic number.

It is not a de Polignac number, because 13480349 - 216 = 13414813 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 (13480343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 164354 + ... + 164435.

It is an arithmetic number, because the mean of its divisors is an integer number (3452295).

Almost surely, 213480349 is an apocalyptic number.

It is an amenable number.

13480349 is a deficient number, since it is larger than the sum of its proper divisors (328831).

13480349 is an equidigital number, since it uses as much as digits as its factorization.

13480349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328830.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 13480349 is about 3671.5594779330. The cubic root of 13480349 is about 237.9945682916.

The spelling of 13480349 in words is "thirteen million, four hundred eighty thousand, three hundred forty-nine".

Divisors: 1 41 328789 13480349