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6115430641 = 49511235191
BaseRepresentation
bin1011011001000001…
…00001000011110001
3120210012021001202011
411230200201003301
5100011022240031
62450454522521
7304355205565
oct55440410361
916705231664
106115430641
112659001611
121228066441
13765c82c18
144202996a5
1525bd396b1
hex16c8210f1

6115430641 has 4 divisors (see below), whose sum is σ = 6116670784. Its totient is φ = 6114190500.

The previous prime is 6115430623. The next prime is 6115430663. The reversal of 6115430641 is 1460345116.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6115430641 - 25 = 6115430609 is a prime.

It is a super-3 number, since 3×61154306413 (a number of 30 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6115430341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 612645 + ... + 622546.

It is an arithmetic number, because the mean of its divisors is an integer number (1529167696).

Almost surely, 26115430641 is an apocalyptic number.

It is an amenable number.

6115430641 is a deficient number, since it is larger than the sum of its proper divisors (1240143).

6115430641 is a wasteful number, since it uses less digits than its factorization.

6115430641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1240142.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 6115430641 is about 78201.2189227252. The cubic root of 6115430641 is about 1828.6995091016.

Adding to 6115430641 its reverse (1460345116), we get a palindrome (7575775757).

The spelling of 6115430641 in words is "six billion, one hundred fifteen million, four hundred thirty thousand, six hundred forty-one".

Divisors: 1 4951 1235191 6115430641