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30345140142 = 23253791672411
BaseRepresentation
bin11100010000101101…
…100001011110101110
32220022210201211122100
4130100231201132232
5444121323441032
621535041355530
72122660302222
oct342055413656
986283654570
1030345140142
1111962049a19
125a6a638ba6
132b27a39235
14167c20c782
15bc90a297c
hex710b617ae

30345140142 has 96 divisors (see below), whose sum is σ = 68270791680. Its totient is φ = 9735860160.

The previous prime is 30345140117. The next prime is 30345140153. The reversal of 30345140142 is 24104154303.

It is a happy number.

30345140142 is a `hidden beast` number, since 3 + 0 + 3 + 4 + 514 + 0 + 142 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12584917 + ... + 12587327.

It is an arithmetic number, because the mean of its divisors is an integer number (711154080).

Almost surely, 230345140142 is an apocalyptic number.

30345140142 is an abundant number, since it is smaller than the sum of its proper divisors (37925651538).

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

30345140142 is a wasteful number, since it uses less digits than its factorization.

30345140142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2718 (or 2715 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

Adding to 30345140142 its reverse (24104154303), we get a palindrome (54449294445).

The spelling of 30345140142 in words is "thirty billion, three hundred forty-five million, one hundred forty thousand, one hundred forty-two".

Divisors: 1 2 3 6 9 18 53 79 106 158 159 167 237 318 334 474 477 501 711 954 1002 1422 1503 2411 3006 4187 4822 7233 8374 8851 12561 13193 14466 17702 21699 25122 26386 26553 37683 39579 43398 53106 75366 79158 79659 118737 127783 159318 190469 237474 255566 380938 383349 402637 571407 699229 766698 805274 1142814 1150047 1207911 1398458 1714221 2097687 2300094 2415822 3428442 3623733 4195374 6293061 7247466 10094857 12586122 20189714 21339761 30284571 31808323 42679522 60569142 63616646 64019283 90853713 95424969 128038566 181707426 190849938 192057849 286274907 384115698 572549814 1685841119 3371682238 5057523357 10115046714 15172570071 30345140142