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30122142123430 = 257430316316049
BaseRepresentation
bin1101101100101010110111…
…00101001100010110100110
310221122122111212122111220101
412312111123211030112212
512422010121340422210
6144021530540454314
76226152522326350
oct666253345142646
9127578455574811
1030122142123430
119663801a45215
123465a5854a39a
1313a6676372676
14761cc2dc60d0
1537382cd67a3a
hex1b655b94c5a6

30122142123430 has 16 divisors (see below), whose sum is σ = 61965549511200. Its totient is φ = 10327591585152.

The previous prime is 30122142123419. The next prime is 30122142123481. The reversal of 30122142123430 is 3432124122103.

It is a super-3 number, since 3×301221421234303 (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 215158157955 + ... + 215158158094.

It is an arithmetic number, because the mean of its divisors is an integer number (3872846844450).

Almost surely, 230122142123430 is an apocalyptic number.

30122142123430 is an abundant number, since it is smaller than the sum of its proper divisors (31843407387770).

30122142123430 is a wasteful number, since it uses less digits than its factorization.

30122142123430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430316316063.

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 30122142123430 its reverse (3432124122103), we get a palindrome (33554266245533).

The spelling of 30122142123430 in words is "thirty trillion, one hundred twenty-two billion, one hundred forty-two million, one hundred twenty-three thousand, four hundred thirty".

Divisors: 1 2 5 7 10 14 35 70 430316316049 860632632098 2151581580245 3012214212343 4303163160490 6024428424686 15061071061715 30122142123430