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406400150 = 25213625231
BaseRepresentation
bin11000001110010…
…010110010010110
31001022201021012102
4120032102302112
51313014301100
6104154322102
713033226042
oct3016226226
91038637172
10406400150
111994474a2
12b4129332
1366272780
143bd8d022
1525a29cd5
hex18392c96

406400150 has 24 divisors (see below), whose sum is σ = 814052064. Its totient is φ = 150055200.

The previous prime is 406400149. The next prime is 406400161. The reversal of 406400150 is 51004604.

It is a happy number.

It is a super-2 number, since 2×4064001502 = 330322163840045000, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 311966 + ... + 313265.

It is an arithmetic number, because the mean of its divisors is an integer number (33918836).

Almost surely, 2406400150 is an apocalyptic number.

406400150 is an abundant number, since it is smaller than the sum of its proper divisors (407651914).

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

406400150 is a wasteful number, since it uses less digits than its factorization.

406400150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 625256 (or 625251 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 406400150 is about 20159.3687897216. The cubic root of 406400150 is about 740.7152507417.

Adding to 406400150 its reverse (51004604), we get a palindrome (457404754).

The spelling of 406400150 in words is "four hundred six million, four hundred thousand, one hundred fifty".

Divisors: 1 2 5 10 13 25 26 50 65 130 325 650 625231 1250462 3126155 6252310 8128003 15630775 16256006 31261550 40640015 81280030 203200075 406400150