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55030659450 = 23521373386587
BaseRepresentation
bin110011010000000101…
…010011100101111010
312021001011220011001020
4303100011103211322
51400200322100300
641140350003310
73655465613244
oct632005234572
9167034804036
1055030659450
112137a410a48
12a7b97a6536
1352600747b0
1429408d3094
1516713558a0
hexcd015397a

55030659450 has 96 divisors (see below), whose sum is σ = 148987922496. Its totient is φ = 13360412160.

The previous prime is 55030659361. The next prime is 55030659451. The reversal of 55030659450 is 5495603055.

It is not an unprimeable number, because it can be changed into a prime (55030659451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 50944 + ... + 335643.

It is an arithmetic number, because the mean of its divisors is an integer number (1551957526).

Almost surely, 255030659450 is an apocalyptic number.

55030659450 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55030659450 is an abundant number, since it is smaller than the sum of its proper divisors (93957263046).

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

55030659450 is a wasteful number, since it uses less digits than its factorization.

55030659450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386688 (or 386683 counting only the distinct ones).

The product of its (nonzero) digits is 405000, while the sum is 42.

The spelling of 55030659450 in words is "fifty-five billion, thirty million, six hundred fifty-nine thousand, four hundred fifty".

Divisors: 1 2 3 5 6 10 13 15 25 26 30 39 50 65 73 75 78 130 146 150 195 219 325 365 390 438 650 730 949 975 1095 1825 1898 1950 2190 2847 3650 4745 5475 5694 9490 10950 14235 23725 28470 47450 71175 142350 386587 773174 1159761 1932935 2319522 3865870 5025631 5798805 9664675 10051262 11597610 15076893 19329350 25128155 28220851 28994025 30153786 50256310 56441702 57988050 75384465 84662553 125640775 141104255 150768930 169325106 251281550 282208510 366871063 376922325 423312765 705521275 733742126 753844650 846625530 1100613189 1411042550 1834355315 2116563825 2201226378 3668710630 4233127650 5503065945 9171776575 11006131890 18343553150 27515329725 55030659450