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30995490241 = 107532882497
BaseRepresentation
bin11100110111011110…
…011010010111000001
32222000010111001021001
4130313132122113001
51001434321141431
622123352532001
72145045214522
oct346736322701
988003431231
1030995490241
1112166167641
1260103b1001
132bcc6b3691
141700740849
15c16218e61
hex73779a5c1

30995490241 has 4 divisors (see below), whose sum is σ = 30998383492. Its totient is φ = 30992596992.

The previous prime is 30995490221. The next prime is 30995490269. The reversal of 30995490241 is 14209459903.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14209459903 = 46730427109.

It can be written as a sum of positive squares in 2 ways, for example, as 20152641600 + 10842848641 = 141960^2 + 104129^2 .

It is a cyclic number.

It is not a de Polignac number, because 30995490241 - 223 = 30987101633 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30995490191 and 30995490200.

It is not an unprimeable number, because it can be changed into a prime (30995490221) 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, 1430496 + ... + 1452001.

It is an arithmetic number, because the mean of its divisors is an integer number (7749595873).

Almost surely, 230995490241 is an apocalyptic number.

It is an amenable number.

30995490241 is a deficient number, since it is larger than the sum of its proper divisors (2893251).

30995490241 is a wasteful number, since it uses less digits than its factorization.

30995490241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2893250.

The product of its (nonzero) digits is 349920, while the sum is 46.

The spelling of 30995490241 in words is "thirty billion, nine hundred ninety-five million, four hundred ninety thousand, two hundred forty-one".

Divisors: 1 10753 2882497 30995490241