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30420340002 = 23213349372497
BaseRepresentation
bin11100010101001100…
…011000110100100010
32220112001020101110100
4130111030120310202
5444300101340002
621550325243230
72124562423623
oct342514306442
986461211410
1030420340002
11119a0541768
125a8b863516
132b3a4a87b0
1416881c5a4a
15bd09a911c
hex715318d22

30420340002 has 48 divisors (see below), whose sum is σ = 71184367800. Its totient is φ = 9333259776.

The previous prime is 30420339979. The next prime is 30420340031. The reversal of 30420340002 is 20004302403.

30420340002 is a `hidden beast` number, since 304 + 20 + 340 + 0 + 0 + 2 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 13504996521 + 16915343481 = 116211^2 + 130059^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 104583 + ... + 267914.

Almost surely, 230420340002 is an apocalyptic number.

30420340002 is an abundant number, since it is smaller than the sum of its proper divisors (40764027798).

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

30420340002 is a wasteful number, since it uses less digits than its factorization.

30420340002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372867 (or 372864 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

Adding to 30420340002 its reverse (20004302403), we get a palindrome (50424642405).

The spelling of 30420340002 in words is "thirty billion, four hundred twenty million, three hundred forty thousand, two".

Divisors: 1 2 3 6 9 13 18 26 39 78 117 234 349 698 1047 2094 3141 4537 6282 9074 13611 27222 40833 81666 372497 744994 1117491 2234982 3352473 4842461 6704946 9684922 14527383 29054766 43582149 87164298 130001453 260002906 390004359 780008718 1170013077 1690018889 2340026154 3380037778 5070056667 10140113334 15210170001 30420340002