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49382720 = 265154321
BaseRepresentation
bin1011110001100…
…0010101000000
310102220220100122
42330120111000
5100120221340
64522235412
71136513642
oct274302500
9112826318
1049382720
1125969a72
1214655b68
13a30045a
1467b6892
154506db5
hex2f18540

49382720 has 28 divisors (see below), whose sum is σ = 117593364. Its totient is φ = 19752960.

The previous prime is 49382713. The next prime is 49382741. The reversal of 49382720 is 2728394.

It can be written as a sum of positive squares in 2 ways, for example, as 9339136 + 40043584 = 3056^2 + 6328^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76841 + ... + 77480.

It is an arithmetic number, because the mean of its divisors is an integer number (4199763).

Almost surely, 249382720 is an apocalyptic number.

49382720 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

49382720 is an abundant number, since it is smaller than the sum of its proper divisors (68210644).

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

49382720 is a wasteful number, since it uses less digits than its factorization.

49382720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154338 (or 154328 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 49382720 is about 7027.2839703544. The cubic root of 49382720 is about 366.8808152162.

The spelling of 49382720 in words is "forty-nine million, three hundred eighty-two thousand, seven hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 160 320 154321 308642 617284 771605 1234568 1543210 2469136 3086420 4938272 6172840 9876544 12345680 24691360 49382720