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1429993 = 5326981
BaseRepresentation
bin101011101000111101001
32200122120201
411131013221
5331224433
650352201
715104035
oct5350751
92618521
101429993
11897414
1258b661
133b0b66
142931c5
151d3a7d
hex15d1e9

1429993 has 4 divisors (see below), whose sum is σ = 1457028. Its totient is φ = 1402960.

The previous prime is 1429969. The next prime is 1430027. The reversal of 1429993 is 3999241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3999241 = 17323117.

It can be written as a sum of positive squares in 2 ways, for example, as 559504 + 870489 = 748^2 + 933^2 .

It is a cyclic number.

It is not a de Polignac number, because 1429993 - 29 = 1429481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1429913) 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, 13438 + ... + 13543.

It is an arithmetic number, because the mean of its divisors is an integer number (364257).

21429993 is an apocalyptic number.

It is an amenable number.

1429993 is a deficient number, since it is larger than the sum of its proper divisors (27035).

1429993 is an equidigital number, since it uses as much as digits as its factorization.

1429993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27034.

The product of its digits is 17496, while the sum is 37.

The square root of 1429993 is about 1195.8231474595. The cubic root of 1429993 is about 112.6621333019.

The spelling of 1429993 in words is "one million, four hundred twenty-nine thousand, nine hundred ninety-three".

Divisors: 1 53 26981 1429993