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13842693 = 321538077
BaseRepresentation
bin110100110011…
…100100000101
3222001021121100
4310303210011
512020431233
61212410313
7225442464
oct64634405
928037540
1013842693
1178a5247
124776999
132b38957
141ba49db
151336813
hexd33905

13842693 has 6 divisors (see below), whose sum is σ = 19995014. Its totient is φ = 9228456.

The previous prime is 13842683. The next prime is 13842701. The reversal of 13842693 is 39624831.

13842693 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 11716929 + 2125764 = 3423^2 + 1458^2 .

It is not a de Polignac number, because 13842693 - 24 = 13842677 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 (13842643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 769030 + ... + 769047.

Almost surely, 213842693 is an apocalyptic number.

It is an amenable number.

13842693 is a deficient number, since it is larger than the sum of its proper divisors (6152321).

13842693 is a wasteful number, since it uses less digits than its factorization.

13842693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1538083 (or 1538080 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The square root of 13842693 is about 3720.5769713849. The cubic root of 13842693 is about 240.1081283604.

It can be divided in two parts, 13842 and 693, that added together give a triangular number (14535 = T170).

The spelling of 13842693 in words is "thirteen million, eight hundred forty-two thousand, six hundred ninety-three".

Divisors: 1 3 9 1538077 4614231 13842693