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46819985 = 537253081
BaseRepresentation
bin1011001010011…
…0101010010001
310021002200221112
42302212222101
543441214420
64351303105
71105651262
oct262465221
9107080845
1046819985
1124479603
121381aa95
139913b44
14630a969
15419c8c5
hex2ca6a91

46819985 has 8 divisors (see below), whose sum is σ = 57702696. Its totient is φ = 36443520.

The previous prime is 46819979. The next prime is 46819987. The reversal of 46819985 is 58991864.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2637376 + 44182609 = 1624^2 + 6647^2 .

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

It is a de Polignac number, because none of the positive numbers 2k-46819985 is a prime.

It is a super-2 number, since 2×468199852 = 4384221990800450, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (46819987) 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, 126356 + ... + 126725.

It is an arithmetic number, because the mean of its divisors is an integer number (7212837).

Almost surely, 246819985 is an apocalyptic number.

It is an amenable number.

46819985 is a deficient number, since it is larger than the sum of its proper divisors (10882711).

46819985 is a wasteful number, since it uses less digits than its factorization.

46819985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253123.

The product of its digits is 622080, while the sum is 50.

The square root of 46819985 is about 6842.5130617340. The cubic root of 46819985 is about 360.4212789383.

The spelling of 46819985 in words is "forty-six million, eight hundred nineteen thousand, nine hundred eighty-five".

Divisors: 1 5 37 185 253081 1265405 9363997 46819985