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430131242040 = 233519735815081
BaseRepresentation
bin1100100001001011101…
…00011110010000111000
31112010020120211001121020
412100211310132100320
524021402044221130
6525333301142440
743035024142503
oct6204564362070
91463216731536
10430131242040
11156465966525
126b4420baa20
133173ac65346
1416b65c1213a
15b2c6ce8e10
hex6425d1e438

430131242040 has 128 divisors (see below), whose sum is σ = 1297561446720. Its totient is φ = 114065100800.

The previous prime is 430131242033. The next prime is 430131242059. The reversal of 430131242040 is 40242131034.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 430131242040.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 84652300 + ... + 84657380.

Almost surely, 2430131242040 is an apocalyptic number.

430131242040 is a gapful number since it is divisible by the number (40) 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 430131242040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (648780723360).

430131242040 is an abundant number, since it is smaller than the sum of its proper divisors (867430204680).

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

430131242040 is a wasteful number, since it uses less digits than its factorization.

430131242040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8873 (or 8869 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 430131242040 its reverse (40242131034), we get a palindrome (470373373074).

The spelling of 430131242040 in words is "four hundred thirty billion, one hundred thirty-one million, two hundred forty-two thousand, forty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 120 197 394 591 788 985 1182 1576 1970 2364 2955 3581 3940 4728 5081 5910 7162 7880 10162 10743 11820 14324 15243 17905 20324 21486 23640 25405 28648 30486 35810 40648 42972 50810 53715 60972 71620 76215 85944 101620 107430 121944 143240 152430 203240 214860 304860 429720 609720 705457 1000957 1410914 2001914 2116371 2821828 3002871 3527285 4003828 4232742 5004785 5643656 6005742 7054570 8007656 8465484 10009570 10581855 12011484 14109140 15014355 16930968 18195061 20019140 21163710 24022968 28218280 30028710 36390122 40038280 42327420 54585183 60057420 72780244 84654840 90975305 109170366 120114840 145560488 181950610 218340732 272925915 363901220 436681464 545851830 727802440 1091703660 2183407320 3584427017 7168854034 10753281051 14337708068 17922135085 21506562102 28675416136 35844270170 43013124204 53766405255 71688540340 86026248408 107532810510 143377080680 215065621020 430131242040