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4667985 = 325722973
BaseRepresentation
bin10001110011101001010001
322210011021100
4101303221101
52143333420
6244015013
754451200
oct21635121
98704240
104667985
1126a9143
121691469
13c7592a
14897237
15623190
hex473a51

4667985 has 72 divisors (see below), whose sum is σ = 9870120. Its totient is φ = 2032128.

The previous prime is 4667983. The next prime is 4667989. The reversal of 4667985 is 5897664.

It can be written as a sum of positive squares in 4 ways, for example, as 603729 + 4064256 = 777^2 + 2016^2 .

It is not a de Polignac number, because 4667985 - 21 = 4667983 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 4667985.

It is not an unprimeable number, because it can be changed into a prime (4667981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 63909 + ... + 63981.

It is an arithmetic number, because the mean of its divisors is an integer number (137085).

Almost surely, 24667985 is an apocalyptic number.

4667985 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4667985 is an abundant number, since it is smaller than the sum of its proper divisors (5202135).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4667985 is a wasteful number, since it uses less digits than its factorization.

4667985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127 (or 117 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The square root of 4667985 is about 2160.5520127967. The cubic root of 4667985 is about 167.1256658691.

It can be divided in two parts, 46679 and 85, that added together give a palindrome (46764).

The spelling of 4667985 in words is "four million, six hundred sixty-seven thousand, nine hundred eighty-five".

Divisors: 1 3 5 7 9 15 21 29 35 45 49 63 73 87 105 145 147 203 219 245 261 315 365 435 441 511 609 657 735 1015 1095 1305 1421 1533 1827 2117 2205 2555 3045 3285 3577 4263 4599 6351 7105 7665 9135 10585 10731 12789 14819 17885 19053 21315 22995 31755 32193 44457 53655 63945 74095 95265 103733 133371 160965 222285 311199 518665 666855 933597 1555995 4667985