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4645040181 = 31981491933
BaseRepresentation
bin1000101001101110…
…11011000000110101
3102222201110111020020
410110313123000311
534003112241211
62044531155353
7223052122125
oct42467330065
912881414206
104645040181
111a74005491
12a97745b59
13590459cb2
14320ca2c85
151c2bdd306
hex114ddb035

4645040181 has 8 divisors (see below), whose sum is σ = 6519354720. Its totient is φ = 2933709552.

The previous prime is 4645040173. The next prime is 4645040189. The reversal of 4645040181 is 1810405464.

4645040181 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (4645040173) and next prime (4645040189).

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

It is not a de Polignac number, because 4645040181 - 23 = 4645040173 is a prime.

It is a super-2 number, since 2×46450401812 = 43152796566209025522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4645040189) 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, 40745910 + ... + 40746023.

It is an arithmetic number, because the mean of its divisors is an integer number (814919340).

Almost surely, 24645040181 is an apocalyptic number.

It is an amenable number.

4645040181 is a deficient number, since it is larger than the sum of its proper divisors (1874314539).

4645040181 is a wasteful number, since it uses less digits than its factorization.

4645040181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81491955.

The product of its (nonzero) digits is 15360, while the sum is 33.

The square root of 4645040181 is about 68154.5316248303. The cubic root of 4645040181 is about 1668.5138847460.

The spelling of 4645040181 in words is "four billion, six hundred forty-five million, forty thousand, one hundred eighty-one".

Divisors: 1 3 19 57 81491933 244475799 1548346727 4645040181