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49148900 = 2252491489
BaseRepresentation
bin1011101101111…
…1001111100100
310102111000121122
42323133033210
5100040231100
64513233112
71134521153
oct273371744
9112430548
1049148900
112581a329
1214562798
13a24abb8
14675559a
1544ac985
hex2edf3e4

49148900 has 18 divisors (see below), whose sum is σ = 106653330. Its totient is φ = 19659520.

The previous prime is 49148899. The next prime is 49148903. The reversal of 49148900 is 984194.

It can be written as a sum of positive squares in 3 ways, for example, as 11792356 + 37356544 = 3434^2 + 6112^2 .

It is a super-2 number, since 2×491489002 = 4831228742420000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (49148903) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 245645 + ... + 245844.

It is an arithmetic number, because the mean of its divisors is an integer number (5925185).

Almost surely, 249148900 is an apocalyptic number.

It is an amenable number.

49148900 is an abundant number, since it is smaller than the sum of its proper divisors (57504430).

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

49148900 is a wasteful number, since it uses less digits than its factorization.

49148900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 491503 (or 491496 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 49148900 is about 7010.6276466519. The cubic root of 49148900 is about 366.3008564696.

The spelling of 49148900 in words is "forty-nine million, one hundred forty-eight thousand, nine hundred".

Divisors: 1 2 4 5 10 20 25 50 100 491489 982978 1965956 2457445 4914890 9829780 12287225 24574450 49148900