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30203010302121 = 3237831428176519
BaseRepresentation
bin1101101111000001011111…
…01100110100000010101001
310221221101020201101122011200
412313200233230310002221
512424321231114131441
6144123023230314413
76235044515444226
oct667405754640251
9127841221348150
1030203010302121
11969502aa19848
123479667058a09
1313b119330bb87
14765b9519694d
153759b26797b6
hex1b782fb340a9

30203010302121 has 48 divisors (see below), whose sum is σ = 45349262125440. Its totient is φ = 19353495732480.

The previous prime is 30203010302119. The next prime is 30203010302141. The reversal of 30203010302121 is 12120301030203.

30203010302121 is a `hidden beast` number, since 30 + 20 + 301 + 0 + 302 + 12 + 1 = 666.

It is not a de Polignac number, because 30203010302121 - 21 = 30203010302119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30203010302094 and 30203010302103.

It is not an unprimeable number, because it can be changed into a prime (30203010302141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 394674300 + ... + 394750818.

It is an arithmetic number, because the mean of its divisors is an integer number (944776294280).

Almost surely, 230203010302121 is an apocalyptic number.

It is an amenable number.

30203010302121 is a deficient number, since it is larger than the sum of its proper divisors (15146251823319).

30203010302121 is a wasteful number, since it uses less digits than its factorization.

30203010302121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90926 (or 90923 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 30203010302121 its reverse (12120301030203), we get a palindrome (42323311332324).

The spelling of 30203010302121 in words is "thirty trillion, two hundred three billion, ten million, three hundred two thousand, one hundred twenty-one".

Divisors: 1 3 9 37 83 111 249 333 747 3071 9213 14281 27639 42843 76519 128529 229557 528397 688671 1185323 1585191 2831203 3555969 4755573 6351077 8493609 10667907 19053231 25480827 43856951 57159693 131570853 234989849 394712559 704969547 1092767839 2114908641 3278303517 9834910551 40432410043 90699730637 121297230129 272099191911 363891690387 816297575733 3355890033569 10067670100707 30203010302121