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30666190606290 = 23351953167727929
BaseRepresentation
bin1101111100100000001110…
…11001011100111111010010
311000120122210112212000002000
412332100013121130333102
513004413324243400130
6145115504203534430
76313362535201611
oct676200731347722
9130518715760060
1030666190606290
119853505149858
12353339122a416
131415a6a23b085
1478037434b878
15382a70ad3260
hex1be40765cfd2

30666190606290 has 512 divisors, whose sum is σ = 88446339072000. Its totient is φ = 7537043644416.

The previous prime is 30666190606231. The next prime is 30666190606291. The reversal of 30666190606290 is 9260609166603.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (30666190606291) by changing a digit.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 33009892546 + ... + 33009893474.

It is an arithmetic number, because the mean of its divisors is an integer number (172746756000).

Almost surely, 230666190606290 is an apocalyptic number.

30666190606290 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 30666190606290, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44223169536000).

30666190606290 is an abundant number, since it is smaller than the sum of its proper divisors (57780148465710).

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

30666190606290 is a wasteful number, since it uses less digits than its factorization.

30666190606290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1911 (or 1905 counting only the distinct ones).

The product of its (nonzero) digits is 3779136, while the sum is 54.

The spelling of 30666190606290 in words is "thirty trillion, six hundred sixty-six billion, one hundred ninety million, six hundred six thousand, two hundred ninety".