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30120054230 = 2575313675939
BaseRepresentation
bin11100000011010010…
…111000110111010110
32212202010012021211002
4130003102320313112
5443141213213410
621500441143302
72114255144120
oct340322706726
985663167732
1030120054230
1111856a92602
125a0718ab32
132ac020a8c6
14165a37a210
15bb44407a5
hex7034b8dd6

30120054230 has 64 divisors (see below), whose sum is σ = 63187153920. Its totient is φ = 10122912384.

The previous prime is 30120054163. The next prime is 30120054287. The reversal of 30120054230 is 3245002103.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5068601 + ... + 5074539.

It is an arithmetic number, because the mean of its divisors is an integer number (987299280).

Almost surely, 230120054230 is an apocalyptic number.

30120054230 is an abundant number, since it is smaller than the sum of its proper divisors (33067099690).

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

30120054230 is a wasteful number, since it uses less digits than its factorization.

30120054230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7373.

The product of its (nonzero) digits is 720, while the sum is 20.

Adding to 30120054230 its reverse (3245002103), we get a palindrome (33365056333).

The spelling of 30120054230 in words is "thirty billion, one hundred twenty million, fifty-four thousand, two hundred thirty".

Divisors: 1 2 5 7 10 14 35 53 70 106 265 371 530 742 1367 1855 2734 3710 5939 6835 9569 11878 13670 19138 29695 41573 47845 59390 72451 83146 95690 144902 207865 314767 362255 415730 507157 629534 724510 1014314 1573835 2203369 2535785 3147670 4406738 5071570 8118613 11016845 16237226 22033690 40593065 56830291 81186130 113660582 284151455 430286489 568302910 860572978 2151432445 3012005423 4302864890 6024010846 15060027115 30120054230