Search a number
-
+
154214020 = 2257710701
BaseRepresentation
bin10010011000100…
…01111010000100
3101202011212212101
421030101322010
5303434322040
623145201444
73551540362
oct1114217204
9352155771
10154214020
117a060304
1243790284
1325c45ccc
14166a4632
15d81309a
hex9311e84

154214020 has 12 divisors (see below), whose sum is σ = 323849484. Its totient is φ = 61685600.

The previous prime is 154214017. The next prime is 154214029. The reversal of 154214020 is 20412451.

It can be written as a sum of positive squares in 2 ways, for example, as 117635716 + 36578304 = 10846^2 + 6048^2 .

It is not an unprimeable number, because it can be changed into a prime (154214029) 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 3 ways as a sum of consecutive naturals, for example, 3855331 + ... + 3855370.

It is an arithmetic number, because the mean of its divisors is an integer number (26987457).

Almost surely, 2154214020 is an apocalyptic number.

154214020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

154214020 is an abundant number, since it is smaller than the sum of its proper divisors (169635464).

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

154214020 is a wasteful number, since it uses less digits than its factorization.

154214020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7710710 (or 7710708 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 154214020 is about 12418.2937636376. The cubic root of 154214020 is about 536.2590314405.

Adding to 154214020 its reverse (20412451), we get a palindrome (174626471).

The spelling of 154214020 in words is "one hundred fifty-four million, two hundred fourteen thousand, twenty".

Divisors: 1 2 4 5 10 20 7710701 15421402 30842804 38553505 77107010 154214020