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49000000 = 265672
BaseRepresentation
bin1011101011101…
…0111001000000
310102012110100211
42322322321000
5100021000000
64510123504
71133331100
oct272727100
9112173324
1049000000
1125728475
12144b0594
13a1c81aa
146717200
15447d7ba
hex2ebae40

49000000 has 147 divisors (see below), whose sum is σ = 141384909. Its totient is φ = 16800000.

The previous prime is 48999989. The next prime is 49000027. The reversal of 49000000 is 94.

Multipling 49000000 by its product of nonzero digits (36), we get a square (1764000000 = 420002).

Adding to 49000000 its reverse (94), we get a palindrome (49000094).

It can be divided in two parts, 4 and 9000000, that multiplied together give a square (36000000 = 60002).

It is a happy number.

The square root of 49000000 is 7000.

It is a perfect power (a square), and thus also a powerful number.

49000000 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 42928704 + 6071296 = 6552^2 + 2464^2 .

It is a Duffinian number.

It is a zygodrome in base 7.

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 20 ways as a sum of consecutive naturals, for example, 6999997 + ... + 7000003.

Almost surely, 249000000 is an apocalyptic number.

49000000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

49000000 is the 7000-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49000000

49000000 is an abundant number, since it is smaller than the sum of its proper divisors (92384909).

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

49000000 is an frugal number, since it uses more digits than its factorization.

49000000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56 (or 14 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

The cubic root of 49000000 is about 365.9305710023.

The spelling of 49000000 in words is "forty-nine million", and thus it is an aban number and an uban number.

Divisors: 1 2 4 5 7 8 10 14 16 20 25 28 32 35 40 49 50 56 64 70 80 98 100 112 125 140 160 175 196 200 224 245 250 280 320 350 392 400 448 490 500 560 625 700 784 800 875 980 1000 1120 1225 1250 1400 1568 1600 1750 1960 2000 2240 2450 2500 2800 3125 3136 3500 3920 4000 4375 4900 5000 5600 6125 6250 7000 7840 8000 8750 9800 10000 11200 12250 12500 14000 15625 15680 17500 19600 20000 21875 24500 25000 28000 30625 31250 35000 39200 40000 43750 49000 50000 56000 61250 62500 70000 78400 87500 98000 100000 109375 122500 125000 140000 153125 175000 196000 200000 218750 245000 250000 280000 306250 350000 392000 437500 490000 500000 612500 700000 765625 875000 980000 1000000 1225000 1400000 1531250 1750000 1960000 2450000 3062500 3500000 4900000 6125000 7000000 9800000 12250000 24500000 49000000