Search a number
-
+
1242402 = 23729581
BaseRepresentation
bin100101111010100100010
32100010020220
410233110202
5304224102
642343510
713363110
oct4572442
92303226
101242402
11779487
124bab96
13346665
14244ab0
151981bc
hex12f522

1242402 has 16 divisors (see below), whose sum is σ = 2839872. Its totient is φ = 354960.

The previous prime is 1242379. The next prime is 1242403. The reversal of 1242402 is 2042421.

It is not an unprimeable number, because it can be changed into a prime (1242403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14749 + ... + 14832.

It is an arithmetic number, because the mean of its divisors is an integer number (177492).

21242402 is an apocalyptic number.

1242402 is an abundant number, since it is smaller than the sum of its proper divisors (1597470).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1242402 is a wasteful number, since it uses less digits than its factorization.

1242402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29593.

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 1242402 is about 1114.6308806058. The cubic root of 1242402 is about 107.5030321842.

Adding to 1242402 its reverse (2042421), we get a palindrome (3284823).

The spelling of 1242402 in words is "one million, two hundred forty-two thousand, four hundred two".

Divisors: 1 2 3 6 7 14 21 42 29581 59162 88743 177486 207067 414134 621201 1242402