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50315400 = 23325227953
BaseRepresentation
bin1011111111110…
…0000010001000
310111200021202100
42333330002020
5100340043100
64554233400
71150450062
oct277740210
9114607670
1050315400
1126446783
1214a25860
13a568b35
14697a732
15463d400
hex2ffc088

50315400 has 72 divisors (see below), whose sum is σ = 168981930. Its totient is φ = 13416960.

The previous prime is 50315399. The next prime is 50315413. The reversal of 50315400 is 451305.

50315400 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 48525156 + 1790244 = 6966^2 + 1338^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (18).

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 17 ways as a sum of consecutive naturals, for example, 12177 + ... + 15776.

Almost surely, 250315400 is an apocalyptic number.

50315400 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

50315400 is an abundant number, since it is smaller than the sum of its proper divisors (118666530).

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

50315400 is a wasteful number, since it uses less digits than its factorization.

50315400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27975 (or 27963 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 50315400 is about 7093.3348997492. The cubic root of 50315400 is about 369.1761557846.

Adding to 50315400 its reverse (451305), we get a palindrome (50766705).

The spelling of 50315400 in words is "fifty million, three hundred fifteen thousand, four hundred".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 18 20 24 25 30 36 40 45 50 60 72 75 90 100 120 150 180 200 225 300 360 450 600 900 1800 27953 55906 83859 111812 139765 167718 223624 251577 279530 335436 419295 503154 559060 670872 698825 838590 1006308 1118120 1257885 1397650 1677180 2012616 2096475 2515770 2795300 3354360 4192950 5031540 5590600 6289425 8385900 10063080 12578850 16771800 25157700 50315400