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142423423124 = 2256536298577
BaseRepresentation
bin1000010010100100011…
…0001111100010010100
3111121121201210112022012
42010221012033202110
54313140344014444
6145232312123352
713201246056563
oct2045106174224
9447551715265
10142423423124
1155446344874
1223729396558
131057998c188
146c71427bda
153a88872b9e
hex212918f894

142423423124 has 12 divisors (see below), whose sum is σ = 249285120084. Its totient is φ = 71199103104.

The previous prime is 142423423117. The next prime is 142423423127. The reversal of 142423423124 is 421324324241.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 129240250000 + 13183173124 = 359500^2 + 114818^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142423423127) 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, 3126677 + ... + 3171900.

It is an arithmetic number, because the mean of its divisors is an integer number (20773760007).

Almost surely, 2142423423124 is an apocalyptic number.

It is an amenable number.

142423423124 is a deficient number, since it is larger than the sum of its proper divisors (106861696960).

142423423124 is a wasteful number, since it uses less digits than its factorization.

142423423124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6304234 (or 6304232 counting only the distinct ones).

The product of its digits is 36864, while the sum is 32.

Adding to 142423423124 its reverse (421324324241), we get a palindrome (563747747365).

The spelling of 142423423124 in words is "one hundred forty-two billion, four hundred twenty-three million, four hundred twenty-three thousand, one hundred twenty-four".

Divisors: 1 2 4 5653 11306 22612 6298577 12597154 25194308 35605855781 71211711562 142423423124