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144305213454 = 232163295716633
BaseRepresentation
bin1000011001100101000…
…0101101000000001110
3111210110212201101100100
42012121100231000032
54331014113312304
6150143133311530
713266006035013
oct2063120550016
9453425641310
10144305213454
1156221592796
1223b736355a6
13107b97b848c
146dad31170a
153b48b85439
hex219942d00e

144305213454 has 48 divisors (see below), whose sum is σ = 314704767312. Its totient is φ = 47787594624.

The previous prime is 144305213441. The next prime is 144305213501. The reversal of 144305213454 is 454312503441.

144305213454 is a `hidden beast` number, since 1 + 4 + 4 + 305 + 2 + 1 + 345 + 4 = 666.

It is a super-2 number, since 2×1443052134542 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8667522 + ... + 8684154.

It is an arithmetic number, because the mean of its divisors is an integer number (6556349319).

Almost surely, 2144305213454 is an apocalyptic number.

144305213454 is an abundant number, since it is smaller than the sum of its proper divisors (170399553858).

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

144305213454 is a wasteful number, since it uses less digits than its factorization.

144305213454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19761 (or 19758 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 36.

Adding to 144305213454 its reverse (454312503441), we get a palindrome (598617716895).

The spelling of 144305213454 in words is "one hundred forty-four billion, three hundred five million, two hundred thirteen thousand, four hundred fifty-four".

Divisors: 1 2 3 6 9 18 163 326 489 978 1467 2934 2957 5914 8871 16633 17742 26613 33266 49899 53226 99798 149697 299394 481991 963982 1445973 2711179 2891946 4337919 5422358 8133537 8675838 16267074 24400611 48801222 49183781 98367562 147551343 295102686 442654029 885308058 8016956303 16033912606 24050868909 48101737818 72152606727 144305213454