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4912191700 = 2252138814289
BaseRepresentation
bin1001001001100101…
…00001100011010100
3110200100011012012221
410210302201203110
540030010113300
62131233152124
7232504640413
oct44462414324
913610135187
104912191700
1120a0893369
12b510bb644
136038c6410
1434856547a
151db3ae31a
hex124ca18d4

4912191700 has 72 divisors (see below), whose sum is σ = 11495123640. Its totient is φ = 1811251200.

The previous prime is 4912191689. The next prime is 4912191703. The reversal of 4912191700 is 71912194.

It can be written as a sum of positive squares in 12 ways, for example, as 1734389316 + 3177802384 = 41646^2 + 56372^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4912191703) 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 23 ways as a sum of consecutive naturals, for example, 1143156 + ... + 1147444.

It is an arithmetic number, because the mean of its divisors is an integer number (159654495).

Almost surely, 24912191700 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 4912191700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5747561820).

4912191700 is an abundant number, since it is smaller than the sum of its proper divisors (6582931940).

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

4912191700 is a wasteful number, since it uses less digits than its factorization.

4912191700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5197 (or 5190 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 34.

The square root of 4912191700 is about 70087.0294705090. The cubic root of 4912191700 is about 1699.9067653596.

The spelling of 4912191700 in words is "four billion, nine hundred twelve million, one hundred ninety-one thousand, seven hundred".

Divisors: 1 2 4 5 10 13 20 25 26 50 52 65 100 130 260 325 650 881 1300 1762 3524 4289 4405 8578 8810 11453 17156 17620 21445 22025 22906 42890 44050 45812 55757 57265 85780 88100 107225 111514 114530 214450 223028 229060 278785 286325 428900 557570 572650 1115140 1145300 1393925 2787850 3778609 5575700 7557218 15114436 18893045 37786090 49121917 75572180 94465225 98243834 188930450 196487668 245609585 377860900 491219170 982438340 1228047925 2456095850 4912191700