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4640820481 = 111921121961
BaseRepresentation
bin1000101001001110…
…10100110100000001
3102222102112002220001
410110213110310001
534001022223411
62044300520001
7223001215603
oct42447246401
912872462801
104640820481
111a71693130
12a96250001
1358c61042b
143204c5173
151c2657dc1
hex1149d4d01

4640820481 has 8 divisors (see below), whose sum is σ = 5063207328. Its totient is φ = 4218516000.

The previous prime is 4640820479. The next prime is 4640820487. The reversal of 4640820481 is 1840280464.

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 4640820481 - 21 = 4640820479 is a prime.

It is a super-2 number, since 2×46408204812 = 43074429473738142722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4640820481.

It is not an unprimeable number, because it can be changed into a prime (4640820487) 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 7 ways as a sum of consecutive naturals, for example, 200341 + ... + 222301.

It is an arithmetic number, because the mean of its divisors is an integer number (632900916).

Almost surely, 24640820481 is an apocalyptic number.

It is an amenable number.

4640820481 is a deficient number, since it is larger than the sum of its proper divisors (422386847).

4640820481 is a wasteful number, since it uses less digits than its factorization.

4640820481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41183.

The product of its (nonzero) digits is 49152, while the sum is 37.

The square root of 4640820481 is about 68123.5677354027. The cubic root of 4640820481 is about 1668.0084882501.

The spelling of 4640820481 in words is "four billion, six hundred forty million, eight hundred twenty thousand, four hundred eighty-one".

Divisors: 1 11 19211 21961 211321 241571 421892771 4640820481