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13457043 = 33498409
BaseRepresentation
bin110011010101…
…011010010011
3221022200121000
4303111122103
511421111133
61200233043
7222245235
oct63253223
927280530
1013457043
117661526
12460b783
132a32262
141b04255
1512ac413
hexcd5693

13457043 has 8 divisors (see below), whose sum is σ = 19936400. Its totient is φ = 8971344.

The previous prime is 13457029. The next prime is 13457063. The reversal of 13457043 is 34075431.

It is not a de Polignac number, because 13457043 - 212 = 13452947 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 498409 = 13457043 / (1 + 3 + 4 + 5 + 7 + 0 + 4 + 3).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13456998 and 13457016.

It is not an unprimeable number, because it can be changed into a prime (13457063) 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 7 ways as a sum of consecutive naturals, for example, 249178 + ... + 249231.

It is an arithmetic number, because the mean of its divisors is an integer number (2492050).

Almost surely, 213457043 is an apocalyptic number.

13457043 is a deficient number, since it is larger than the sum of its proper divisors (6479357).

13457043 is an equidigital number, since it uses as much as digits as its factorization.

13457043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 498418 (or 498412 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 13457043 is about 3668.3842492302. The cubic root of 13457043 is about 237.8573339361.

The spelling of 13457043 in words is "thirteen million, four hundred fifty-seven thousand, forty-three".

Divisors: 1 3 9 27 498409 1495227 4485681 13457043