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30241740 = 22353171229
BaseRepresentation
bin111001101011…
…1001111001100
32002220102212110
41303113033030
530220213430
63000104020
7515023224
oct163271714
962812773
1030241740
1116086081
12a165010
13635b029
144033084
1529c57b0
hex1cd73cc

30241740 has 96 divisors (see below), whose sum is σ = 89026560. Its totient is φ = 7660800.

The previous prime is 30241733. The next prime is 30241741. The reversal of 30241740 is 4714203.

It is not an unprimeable number, because it can be changed into a prime (30241741) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 131946 + ... + 132174.

It is an arithmetic number, because the mean of its divisors is an integer number (927360).

Almost surely, 230241740 is an apocalyptic number.

30241740 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30241740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44513280).

30241740 is an abundant number, since it is smaller than the sum of its proper divisors (58784820).

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

30241740 is a wasteful number, since it uses less digits than its factorization.

30241740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343 (or 341 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 30241740 is about 5499.2490396417. The cubic root of 30241740 is about 311.5556214857. Note that the first 3 decimals are identical.

Adding to 30241740 its reverse (4714203), we get a palindrome (34955943).

The spelling of 30241740 in words is "thirty million, two hundred forty-one thousand, seven hundred forty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 31 60 62 71 93 124 142 155 186 213 229 284 310 355 372 426 458 465 620 687 710 852 916 930 1065 1145 1374 1420 1860 2130 2201 2290 2748 3435 4260 4402 4580 6603 6870 7099 8804 11005 13206 13740 14198 16259 21297 22010 26412 28396 32518 33015 35495 42594 44020 48777 65036 66030 70990 81295 85188 97554 106485 132060 141980 162590 195108 212970 243885 325180 425940 487770 504029 975540 1008058 1512087 2016116 2520145 3024174 5040290 6048348 7560435 10080580 15120870 30241740