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4245221761 = 111273038813
BaseRepresentation
bin1111110100001000…
…1111000110000001
3101221212010121110121
43331002033012001
532143234044021
61541125500241
7210125534554
oct37502170601
911855117417
104245221761
111889353a40
129a5871681
13528680251
142c3b4869b
1519ca63741
hexfd08f181

4245221761 has 8 divisors (see below), whose sum is σ = 4667618304. Its totient is φ = 3828903120.

The previous prime is 4245221707. The next prime is 4245221789. The reversal of 4245221761 is 1671225424.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4245221761 - 227 = 4111004033 is a prime.

It is a super-2 number, since 2×42452217612 = 36043815600135882242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4245221791) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1518010 + ... + 1520803.

It is an arithmetic number, because the mean of its divisors is an integer number (583452288).

Almost surely, 24245221761 is an apocalyptic number.

It is an amenable number.

4245221761 is a deficient number, since it is larger than the sum of its proper divisors (422396543).

4245221761 is a wasteful number, since it uses less digits than its factorization.

4245221761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3038951.

The product of its digits is 26880, while the sum is 34.

The square root of 4245221761 is about 65155.3663254225. The cubic root of 4245221761 is about 1619.1986283137.

The spelling of 4245221761 in words is "four billion, two hundred forty-five million, two hundred twenty-one thousand, seven hundred sixty-one".

Divisors: 1 11 127 1397 3038813 33426943 385929251 4245221761