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108234420100 = 225216721972
BaseRepresentation
bin110010011001101000…
…1100010111110000100
3101100101001011020001221
41210303101202332010
53233131002420400
6121415555130124
710551102251122
oct1446321427604
9340331136057
10108234420100
11419a1565874
1218b875a3944
13a28b79b981
14534a90a912
152c370dcc1a
hex1933462f84

108234420100 has 81 divisors (see below), whose sum is σ = 237489009583. Its totient is φ = 42816074560.

The previous prime is 108234420083. The next prime is 108234420103. The reversal of 108234420100 is 1024432801.

The square root of 108234420100 is 328990.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 24958312324 + 83276107776 = 157982^2 + 288576^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (108234420103) 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 26 ways as a sum of consecutive naturals, for example, 549413202 + ... + 549413398.

Almost surely, 2108234420100 is an apocalyptic number.

108234420100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

108234420100 is the 328990-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 108234420100

108234420100 is an abundant number, since it is smaller than the sum of its proper divisors (129254589483).

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

108234420100 is an equidigital number, since it uses as much as digits as its factorization.

108234420100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 742 (or 371 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

Multiplying 108234420100 by its sum of digits (25), we get a square (2705860502500 = 16449502).

108234420100 divided by its sum of digits (25) gives a square (4329376804 = 657982).

Adding to 108234420100 its reverse (1024432801), we get a palindrome (109258852901).

The spelling of 108234420100 in words is "one hundred eight billion, two hundred thirty-four million, four hundred twenty thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 50 100 167 197 334 394 668 788 835 985 1670 1970 3340 3940 4175 4925 8350 9850 16700 19700 27889 32899 38809 55778 65798 77618 111556 131596 139445 155236 164495 194045 278890 328990 388090 557780 657980 697225 776180 822475 970225 1394450 1644950 1940450 2788900 3289900 3880900 5494133 6481103 10988266 12962206 21976532 25924412 27470665 32405515 54941330 64811030 109882660 129622060 137353325 162027575 274706650 324055150 549413300 648110300 1082344201 2164688402 4329376804 5411721005 10823442010 21646884020 27058605025 54117210050 108234420100