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30665653007225 = 5211681105010369
BaseRepresentation
bin1101111100011111001110…
…10110101011001101111001
311000120121102002021010210112
412332033213112223031321
513004411224132212400
6145115335001154105
76313343316526445
oct676174726531571
9130517362233715
1030665653007225
119853259741705
12353326118b935
1314159b2a50212
14780322ba9825
15382a3d7de835
hex1be3e75ab379

30665653007225 has 12 divisors (see below), whose sum is σ = 38028665412540. Its totient is φ = 24530421964800.

The previous prime is 30665653007219. The next prime is 30665653007239. The reversal of 30665653007225 is 52270035656603.

It can be written as a sum of positive squares in 6 ways, for example, as 34885274176 + 30630767733049 = 186776^2 + 5534507^2 .

It is not a de Polignac number, because 30665653007225 - 222 = 30665648812921 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 52213160 + ... + 52797209.

It is an arithmetic number, because the mean of its divisors is an integer number (3169055451045).

Almost surely, 230665653007225 is an apocalyptic number.

It is an amenable number.

30665653007225 is a deficient number, since it is larger than the sum of its proper divisors (7363012405315).

30665653007225 is a wasteful number, since it uses less digits than its factorization.

30665653007225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105022060 (or 105022055 counting only the distinct ones).

The product of its (nonzero) digits is 6804000, while the sum is 50.

The spelling of 30665653007225 in words is "thirty trillion, six hundred sixty-five billion, six hundred fifty-three million, seven thousand, two hundred twenty-five".

Divisors: 1 5 25 11681 58405 292025 105010369 525051845 2625259225 1226626120289 6133130601445 30665653007225