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100230031230 = 23571749935623
BaseRepresentation
bin101110101011000101…
…1001110011101111110
3100120201012111010202220
41131112023032131332
53120232341444410
6114013421230210
710145536131330
oct1352613163576
9316635433686
10100230031230
113956426aa5a
1217512a02366
1395b437ccb4
144bcb81d450
152919527070
hex17562ce77e

100230031230 has 128 divisors (see below), whose sum is σ = 291198302208. Its totient is φ = 21553938432.

The previous prime is 100230031229. The next prime is 100230031241. The reversal of 100230031230 is 32130032001.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 17822199 + ... + 17827821.

It is an arithmetic number, because the mean of its divisors is an integer number (2274986736).

Almost surely, 2100230031230 is an apocalyptic number.

100230031230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 100230031230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (145599151104).

100230031230 is an abundant number, since it is smaller than the sum of its proper divisors (190968270978).

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

100230031230 is a wasteful number, since it uses less digits than its factorization.

100230031230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10650.

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 100230031230 its reverse (32130032001), we get a palindrome (132360063231).

The spelling of 100230031230 in words is "one hundred billion, two hundred thirty million, thirty-one thousand, two hundred thirty".

Divisors: 1 2 3 5 6 7 10 14 15 17 21 30 34 35 42 51 70 85 102 105 119 170 210 238 255 357 510 595 714 1190 1785 3570 4993 5623 9986 11246 14979 16869 24965 28115 29958 33738 34951 39361 49930 56230 69902 74895 78722 84345 84881 95591 104853 118083 149790 168690 169762 174755 191182 196805 209706 236166 254643 286773 349510 393610 424405 477955 509286 524265 573546 590415 594167 669137 848810 955910 1048530 1180830 1188334 1273215 1338274 1433865 1782501 2007411 2546430 2867730 2970835 3345685 3565002 4014822 5941670 6691370 8912505 10037055 17825010 20074110 28075639 56151278 84226917 140378195 168453834 196529473 280756390 393058946 421134585 477285863 589588419 842269170 954571726 982647365 1179176838 1431857589 1965294730 2386429315 2863715178 2947942095 3341001041 4772858630 5895884190 6682002082 7159287945 10023003123 14318575890 16705005205 20046006246 33410010410 50115015615 100230031230