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905670148 = 22534272029
BaseRepresentation
bin110101111110110…
…110111000000100
32100010011210212211
4311332312320010
53323322421043
6225511353204
731305032515
oct6576667004
92303153784
10905670148
11425255429
12213382804
131158304c6
14883d4a0c
155479ba9d
hex35fb6e04

905670148 has 12 divisors (see below), whose sum is σ = 1614827340. Its totient is φ = 444290912.

The previous prime is 905670137. The next prime is 905670151. The reversal of 905670148 is 841076509.

It can be written as a sum of positive squares in 2 ways, for example, as 679227844 + 226442304 = 26062^2 + 15048^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 905670148.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2135803 + ... + 2136226.

It is an arithmetic number, because the mean of its divisors is an integer number (134568945).

Almost surely, 2905670148 is an apocalyptic number.

It is an amenable number.

905670148 is a deficient number, since it is larger than the sum of its proper divisors (709157192).

905670148 is a wasteful number, since it uses less digits than its factorization.

905670148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4272086 (or 4272084 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 905670148 is about 30094.3540884333. The cubic root of 905670148 is about 967.5127220471.

The spelling of 905670148 in words is "nine hundred five million, six hundred seventy thousand, one hundred forty-eight".

Divisors: 1 2 4 53 106 212 4272029 8544058 17088116 226417537 452835074 905670148