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144618434452 = 22109331693657
BaseRepresentation
bin1000011010101111101…
…1100010111110010100
3111211021201002122210001
42012223323202332110
54332134304400302
6150234202541044
713306531260532
oct2065373427624
9454251078701
10144618434452
1156372377318
1224040507784
1310839664c4b
146ddcb67152
153b66406787
hex21abee2f94

144618434452 has 12 divisors (see below), whose sum is σ = 255404116660. Its totient is φ = 71645829696.

The previous prime is 144618434423. The next prime is 144618434497. The reversal of 144618434452 is 254434816441.

It can be written as a sum of positive squares in 2 ways, for example, as 58021247376 + 86597187076 = 240876^2 + 294274^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 165846393 + ... + 165847264.

Almost surely, 2144618434452 is an apocalyptic number.

It is an amenable number.

144618434452 is a deficient number, since it is larger than the sum of its proper divisors (110785682208).

144618434452 is a wasteful number, since it uses less digits than its factorization.

144618434452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331693770 (or 331693768 counting only the distinct ones).

The product of its digits is 1474560, while the sum is 46.

The spelling of 144618434452 in words is "one hundred forty-four billion, six hundred eighteen million, four hundred thirty-four thousand, four hundred fifty-two".

Divisors: 1 2 4 109 218 436 331693657 663387314 1326774628 36154608613 72309217226 144618434452