Search a number
-
+
183904143392 = 25412434
BaseRepresentation
bin1010101101000110001…
…0101000100000100000
3122120200121002110011002
42223101202220200200
511003113430042032
6220252344011132
716200213266234
oct2532142504040
9576617073132
10183904143392
1170aa2104972
122b785160aa8
131445a743378
148c8851a5c4
154bb5346862
hex2ad18a8820

183904143392 has 90 divisors (see below), whose sum is σ = 379943318349. Its totient is φ = 87623074560.

The previous prime is 183904143391. The next prime is 183904143407. The reversal of 183904143392 is 293341409381.

It is a happy number.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 131336659216 + 52567484176 = 362404^2 + 229276^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=303236.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (183904143391) 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 14 ways as a sum of consecutive naturals, for example, 4276840523 + ... + 4276840565.

Almost surely, 2183904143392 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 183904143392

183904143392 is an abundant number, since it is smaller than the sum of its proper divisors (196039174957).

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

183904143392 is an frugal number, since it uses more digits than its factorization.

183904143392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264 (or 86 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 47.

The spelling of 183904143392 in words is "one hundred eighty-three billion, nine hundred four million, one hundred forty-three thousand, three hundred ninety-two".

Divisors: 1 2 4 8 16 32 41 43 82 86 164 172 328 344 656 688 1312 1376 1681 1763 1849 3362 3526 3698 6724 7052 7396 13448 14104 14792 26896 28208 29584 53792 56416 59168 72283 75809 79507 144566 151618 159014 289132 303236 318028 578264 606472 636056 1156528 1212944 1272112 2313056 2425888 2544224 3108169 3259787 3418801 6216338 6519574 6837602 12432676 13039148 13675204 24865352 26078296 27350408 49730704 52156592 54700816 99461408 104313184 109401632 133651267 140170841 267302534 280341682 534605068 560683364 1069210136 1121366728 2138420272 2242733456 4276840544 4485466912 5747004481 11494008962 22988017924 45976035848 91952071696 183904143392