Search a number
-
+
1342269473 = 1489901457
BaseRepresentation
bin101000000000001…
…0110100000100001
310110112201100120012
41100000112200201
510222110110343
6341105254305
745156050036
oct12000264041
93415640505
101342269473
11629748a16
12315634395
131851177bc
14ca3a538d
157cc8e718
hex50016821

1342269473 has 4 divisors (see below), whose sum is σ = 1343172420. Its totient is φ = 1341366528.

The previous prime is 1342269457. The next prime is 1342269479. The reversal of 1342269473 is 3749622431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3749622431 = 19197348549.

It can be written as a sum of positive squares in 2 ways, for example, as 714867169 + 627402304 = 26737^2 + 25048^2 .

It is a cyclic number.

It is not a de Polignac number, because 1342269473 - 24 = 1342269457 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1342269473.

It is not an unprimeable number, because it can be changed into a prime (1342269479) 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, 449240 + ... + 452217.

It is an arithmetic number, because the mean of its divisors is an integer number (335793105).

Almost surely, 21342269473 is an apocalyptic number.

It is an amenable number.

1342269473 is a deficient number, since it is larger than the sum of its proper divisors (902947).

1342269473 is an equidigital number, since it uses as much as digits as its factorization.

1342269473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 902946.

The product of its digits is 217728, while the sum is 41.

The square root of 1342269473 is about 36636.9959603677. The cubic root of 1342269473 is about 1103.0958170400.

The spelling of 1342269473 in words is "one billion, three hundred forty-two million, two hundred sixty-nine thousand, four hundred seventy-three".

Divisors: 1 1489 901457 1342269473