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13490577 = 33618191
BaseRepresentation
bin110011011101…
…100110010001
3221101101121000
4303131212101
511423144302
61201052213
7222445062
oct63354621
927341530
1013490577
117684741
124627069
132a445b9
141b12569
1512b731c
hexcdd991

13490577 has 16 divisors (see below), whose sum is σ = 20316160. Its totient is φ = 8845200.

The previous prime is 13490573. The next prime is 13490591. The reversal of 13490577 is 77509431.

It is a happy number.

It is not a de Polignac number, because 13490577 - 22 = 13490573 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13490573) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 2449 + ... + 5742.

It is an arithmetic number, because the mean of its divisors is an integer number (1269760).

Almost surely, 213490577 is an apocalyptic number.

It is an amenable number.

13490577 is a deficient number, since it is larger than the sum of its proper divisors (6825583).

13490577 is an equidigital number, since it uses as much as digits as its factorization.

13490577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8261 (or 8255 counting only the distinct ones).

The product of its (nonzero) digits is 26460, while the sum is 36.

The square root of 13490577 is about 3672.9520824536. The cubic root of 13490577 is about 238.0547446037.

The spelling of 13490577 in words is "thirteen million, four hundred ninety thousand, five hundred seventy-seven".

Divisors: 1 3 9 27 61 183 549 1647 8191 24573 73719 221157 499651 1498953 4496859 13490577