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30143243460 = 223511411113941
BaseRepresentation
bin11100000100101011…
…010110010011000100
32212210201211102110110
4130010223112103010
5443213132242320
621503030153020
72114656225161
oct340453262304
985721742413
1030143243460
1111869090a60
125a12ab2770
132ac4c69845
14165d495068
15bb64c15e0
hex704ad64c4

30143243460 has 96 divisors (see below), whose sum is σ = 94319697024. Its totient is φ = 7129216000.

The previous prime is 30143243453. The next prime is 30143243467. The reversal of 30143243460 is 6434234103.

It is an interprime number because it is at equal distance from previous prime (30143243453) and next prime (30143243467).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (30143243467) 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, 529911 + ... + 584030.

It is an arithmetic number, because the mean of its divisors is an integer number (982496844).

Almost surely, 230143243460 is an apocalyptic number.

30143243460 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30143243460 is an abundant number, since it is smaller than the sum of its proper divisors (64176453564).

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

30143243460 is a wasteful number, since it uses less digits than its factorization.

30143243460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1114005 (or 1114003 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 30.

Adding to 30143243460 its reverse (6434234103), we get a palindrome (36577477563).

The spelling of 30143243460 in words is "thirty billion, one hundred forty-three million, two hundred forty-three thousand, four hundred sixty".

Divisors: 1 2 3 4 5 6 10 11 12 15 20 22 30 33 41 44 55 60 66 82 110 123 132 164 165 205 220 246 330 410 451 492 615 660 820 902 1230 1353 1804 2255 2460 2706 4510 5412 6765 9020 13530 27060 1113941 2227882 3341823 4455764 5569705 6683646 11139410 12253351 13367292 16709115 22278820 24506702 33418230 36760053 45671581 49013404 61266755 66836460 73520106 91343162 122533510 137014743 147040212 182686324 183800265 228357905 245067020 274029486 367600530 456715810 502387391 548058972 685073715 735201060 913431620 1004774782 1370147430 1507162173 2009549564 2511936955 2740294860 3014324346 5023873910 6028648692 7535810865 10047747820 15071621730 30143243460