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13542385 = 52708477
BaseRepresentation
bin110011101010…
…001111110001
3221111000122211
4303222033301
511431324020
61202132121
7223052113
oct63521761
927430584
1013542385
11770a65a
124651041
132a6205c
141b273b3
1512c785a
hexcea3f1

13542385 has 4 divisors (see below), whose sum is σ = 16250868. Its totient is φ = 10833904.

The previous prime is 13542379. The next prime is 13542413. The reversal of 13542385 is 58324531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 58324531 = 349167119.

It can be written as a sum of positive squares in 2 ways, for example, as 1515361 + 12027024 = 1231^2 + 3468^2 .

It is a cyclic number.

It is not a de Polignac number, because 13542385 - 223 = 5153777 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1354234 + ... + 1354243.

It is an arithmetic number, because the mean of its divisors is an integer number (4062717).

Almost surely, 213542385 is an apocalyptic number.

It is an amenable number.

13542385 is a deficient number, since it is larger than the sum of its proper divisors (2708483).

13542385 is an equidigital number, since it uses as much as digits as its factorization.

13542385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2708482.

The product of its digits is 14400, while the sum is 31.

The square root of 13542385 is about 3679.9979619560. The cubic root of 13542385 is about 238.3590900272.

The spelling of 13542385 in words is "thirteen million, five hundred forty-two thousand, three hundred eighty-five".

Divisors: 1 5 2708477 13542385