Search a number
-
+
142404130240 = 265445012907
BaseRepresentation
bin1000010010011111110…
…0101001010111000000
3111121120101111100102221
42010213330221113000
54313120424131430
6145230342420424
713200623064241
oct2044774512700
9447511440387
10142404130240
1155436467839
1223722a31714
1310575995878
146c6ca44cc8
153a86d1157a
hex2127f295c0

142404130240 has 28 divisors (see below), whose sum is σ = 339099835896. Its totient is φ = 56961651968.

The previous prime is 142404130207. The next prime is 142404130247. The reversal of 142404130240 is 42031404241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142404130247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 222506134 + ... + 222506773.

Almost surely, 2142404130240 is an apocalyptic number.

142404130240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142404130240 is an abundant number, since it is smaller than the sum of its proper divisors (196695705656).

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

142404130240 is an equidigital number, since it uses as much as digits as its factorization.

142404130240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 445012924 (or 445012914 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 142404130240 its reverse (42031404241), we get a palindrome (184435534481).

The spelling of 142404130240 in words is "one hundred forty-two billion, four hundred four million, one hundred thirty thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 160 320 445012907 890025814 1780051628 2225064535 3560103256 4450129070 7120206512 8900258140 14240413024 17800516280 28480826048 35601032560 71202065120 142404130240