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123231142424 = 231311299104869
BaseRepresentation
bin111001011000100100…
…1100000001000011000
3102210002012010122122002
41302301021200020120
54004334133024144
6132340035020132
711621532266465
oct1626111401030
9383065118562
10123231142424
1148297849265
121ba71a3a648
13b80b73ab70
145d7051a66c
1533139a614e
hex1cb1260218

123231142424 has 32 divisors (see below), whose sum is σ = 248856510000. Its totient is φ = 56870335872.

The previous prime is 123231142423. The next prime is 123231142459. The reversal of 123231142424 is 424241132321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123231142423) 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 in 7 ways as a sum of consecutive naturals, for example, 1122662 + ... + 1227530.

Almost surely, 2123231142424 is an apocalyptic number.

It is an amenable number.

123231142424 is an abundant number, since it is smaller than the sum of its proper divisors (125625367576).

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

123231142424 is a wasteful number, since it uses less digits than its factorization.

123231142424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116187 (or 116183 counting only the distinct ones).

The product of its digits is 9216, while the sum is 29.

Adding to 123231142424 its reverse (424241132321), we get a palindrome (547472274745).

The spelling of 123231142424 in words is "one hundred twenty-three billion, two hundred thirty-one million, one hundred forty-two thousand, four hundred twenty-four".

Divisors: 1 2 4 8 13 26 52 104 11299 22598 45196 90392 104869 146887 209738 293774 419476 587548 838952 1175096 1363297 2726594 5453188 10906376 1184914831 2369829662 4739659324 9479318648 15403892803 30807785606 61615571212 123231142424