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1242602 = 2621301
BaseRepresentation
bin100101111010111101010
32100010112022
410233113222
5304230402
642344442
713363514
oct4572752
92303468
101242602
11779649
124bb122
1334678a
14244bb4
151982a2
hex12f5ea

1242602 has 4 divisors (see below), whose sum is σ = 1863906. Its totient is φ = 621300.

The previous prime is 1242601. The next prime is 1242611. The reversal of 1242602 is 2062421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2062421 = 8812341.

It can be written as a sum of positive squares in only one way, i.e., 1234321 + 8281 = 1111^2 + 91^2 .

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (1242601) 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 as a sum of consecutive naturals, namely, 310649 + ... + 310652.

21242602 is an apocalyptic number.

1242602 is a deficient number, since it is larger than the sum of its proper divisors (621304).

1242602 is an equidigital number, since it uses as much as digits as its factorization.

1242602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 621303.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 1242602 is about 1114.7205927944. The cubic root of 1242602 is about 107.5088004333.

The spelling of 1242602 in words is "one million, two hundred forty-two thousand, six hundred two".

Divisors: 1 2 621301 1242602