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13490869 = 73116197
BaseRepresentation
bin110011011101…
…101010110101
3221101101222211
4303131222311
511423201434
61201053421
7222445660
oct63355265
927341884
1013490869
117684987
124627271
132a44782
141b126d7
1512b7464
hexcddab5

13490869 has 8 divisors (see below), whose sum is σ = 15470208. Its totient is φ = 11524560.

The previous prime is 13490803. The next prime is 13490879. The reversal of 13490869 is 96809431.

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 13490869 - 29 = 13490357 is a prime.

It is a super-2 number, since 2×134908692 = 364007092750322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13490879) 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, 922 + ... + 5275.

It is an arithmetic number, because the mean of its divisors is an integer number (1933776).

Almost surely, 213490869 is an apocalyptic number.

It is an amenable number.

13490869 is a deficient number, since it is larger than the sum of its proper divisors (1979339).

13490869 is an equidigital number, since it uses as much as digits as its factorization.

13490869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6515.

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 13490869 is about 3672.9918322806. The cubic root of 13490869 is about 238.0564621355.

The spelling of 13490869 in words is "thirteen million, four hundred ninety thousand, eight hundred sixty-nine".

Divisors: 1 7 311 2177 6197 43379 1927267 13490869