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47275000 = 23553161
BaseRepresentation
bin1011010001010…
…1101111111000
310021221211002221
42310111233320
544100300000
64405133424
71112554663
oct264255770
9107854087
1047275000
112475a453
12139ba274
139a42c96
1463c86da
15423c61a
hex2d15bf8

47275000 has 96 divisors (see below), whose sum is σ = 116242560. Its totient is φ = 18000000.

The previous prime is 47274991. The next prime is 47275003. The reversal of 47275000 is 57274.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47275003) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 774970 + ... + 775030.

It is an arithmetic number, because the mean of its divisors is an integer number (1210860).

Almost surely, 247275000 is an apocalyptic number.

47275000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47275000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58121280).

47275000 is an abundant number, since it is smaller than the sum of its proper divisors (68967560).

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

47275000 is an equidigital number, since it uses as much as digits as its factorization.

47275000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123 (or 99 counting only the distinct ones).

The product of its (nonzero) digits is 1960, while the sum is 25.

The square root of 47275000 is about 6875.6817843760. The cubic root of 47275000 is about 361.5850887617.

The spelling of 47275000 in words is "forty-seven million, two hundred seventy-five thousand".

Divisors: 1 2 4 5 8 10 20 25 31 40 50 61 62 100 122 124 125 155 200 244 248 250 305 310 488 500 610 620 625 775 1000 1220 1240 1250 1525 1550 1891 2440 2500 3050 3100 3125 3782 3875 5000 6100 6200 6250 7564 7625 7750 9455 12200 12500 15128 15250 15500 18910 19375 25000 30500 31000 37820 38125 38750 47275 61000 75640 76250 77500 94550 96875 152500 155000 189100 190625 193750 236375 305000 378200 381250 387500 472750 762500 775000 945500 1181875 1525000 1891000 2363750 4727500 5909375 9455000 11818750 23637500 47275000