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13042073 = 111185643
BaseRepresentation
bin110001110000…
…000110011001
3220112121100202
4301300012121
511314321243
61143311545
7215566352
oct61600631
926477322
1013042073
1173a8780
12444b5b5
132918405
141a36d29
1512294b8
hexc70199

13042073 has 4 divisors (see below), whose sum is σ = 14227728. Its totient is φ = 11856420.

The previous prime is 13042069. The next prime is 13042087. The reversal of 13042073 is 37024031.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13042073 - 22 = 13042069 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13042013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 592811 + ... + 592832.

It is an arithmetic number, because the mean of its divisors is an integer number (3556932).

Almost surely, 213042073 is an apocalyptic number.

It is an amenable number.

13042073 is a deficient number, since it is larger than the sum of its proper divisors (1185655).

13042073 is a wasteful number, since it uses less digits than its factorization.

13042073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1185654.

The product of its (nonzero) digits is 504, while the sum is 20.

The square root of 13042073 is about 3611.3810377749. The cubic root of 13042073 is about 235.3868563954.

The spelling of 13042073 in words is "thirteen million, forty-two thousand, seventy-three".

Divisors: 1 11 1185643 13042073