Search a number
-
+
1290053 = 1797207
BaseRepresentation
bin100111010111101000101
32102112121202
410322331011
5312240203
643352245
713652042
oct4727505
92375552
101290053
11801266
12522685
1336225b
142581c9
151a7388
hex13af45

1290053 has 4 divisors (see below), whose sum is σ = 1297440. Its totient is φ = 1282668.

The previous prime is 1290049. The next prime is 1290077. The reversal of 1290053 is 3500921.

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, and also an emirpimes, since its reverse is a distinct semiprime: 3500921 = 19184259.

It is a cyclic number.

It is not a de Polignac number, because 1290053 - 22 = 1290049 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 (1290013) 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, 3425 + ... + 3782.

It is an arithmetic number, because the mean of its divisors is an integer number (324360).

21290053 is an apocalyptic number.

It is an amenable number.

1290053 is a deficient number, since it is larger than the sum of its proper divisors (7387).

1290053 is an equidigital number, since it uses as much as digits as its factorization.

1290053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7386.

The product of its (nonzero) digits is 270, while the sum is 20.

The square root of 1290053 is about 1135.8050008694. The cubic root of 1290053 is about 108.8602141549.

Adding to 1290053 its reverse (3500921), we get a palindrome (4790974).

The spelling of 1290053 in words is "one million, two hundred ninety thousand, fifty-three".

Divisors: 1 179 7207 1290053