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30201011312309 = 61748948154477
BaseRepresentation
bin1101101110111101110001…
…00011010001011010110101
310221221012002101221102122222
412313132320203101122311
512424303132343443214
6144122053021132125
76234644133350465
oct667367043213265
9127835071842588
1030201011312309
1196941a4602152
1234791a96ba045
1313b0c35129576
14765a458c1ba5
153758e6e1638e
hex1b77b88d16b5

30201011312309 has 4 divisors (see below), whose sum is σ = 30249959467404. Its totient is φ = 30152063157216.

The previous prime is 30201011312293. The next prime is 30201011312389. The reversal of 30201011312309 is 90321311010203.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9038573242084 + 21162438070225 = 3006422^2 + 4600265^2 .

It is a cyclic number.

It is not a de Polignac number, because 30201011312309 - 24 = 30201011312293 is a prime.

It is a super-2 number, since 2×302010113123092 (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30201011312389) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24474076622 + ... + 24474077855.

It is an arithmetic number, because the mean of its divisors is an integer number (7562489866851).

Almost surely, 230201011312309 is an apocalyptic number.

It is an amenable number.

30201011312309 is a deficient number, since it is larger than the sum of its proper divisors (48948155095).

30201011312309 is an equidigital number, since it uses as much as digits as its factorization.

30201011312309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48948155094.

The product of its (nonzero) digits is 972, while the sum is 26.

The spelling of 30201011312309 in words is "thirty trillion, two hundred one billion, eleven million, three hundred twelve thousand, three hundred nine".

Divisors: 1 617 48948154477 30201011312309