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47300020 = 2252365001
BaseRepresentation
bin1011010001101…
…1110110110100
310022000002102121
42310123312310
544102100040
64405445324
71113020635
oct264336664
9108002377
1047300020
1124777229
1213a10844
139a514a1
1463d388c
154244c4a
hex2d1bdb4

47300020 has 12 divisors (see below), whose sum is σ = 99330084. Its totient is φ = 18920000.

The previous prime is 47300003. The next prime is 47300041. The reversal of 47300020 is 2000374.

It can be written as a sum of positive squares in 2 ways, for example, as 12702096 + 34597924 = 3564^2 + 5882^2 .

It is a junction number, because it is equal to n+sod(n) for n = 47299967 and 47300003.

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, 1182481 + ... + 1182520.

It is an arithmetic number, because the mean of its divisors is an integer number (8277507).

Almost surely, 247300020 is an apocalyptic number.

It is an amenable number.

47300020 is an abundant number, since it is smaller than the sum of its proper divisors (52030064).

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

47300020 is a wasteful number, since it uses less digits than its factorization.

47300020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2365010 (or 2365008 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 16.

The square root of 47300020 is about 6877.5009996364. The cubic root of 47300020 is about 361.6488663989.

Adding to 47300020 its reverse (2000374), we get a palindrome (49300394).

The spelling of 47300020 in words is "forty-seven million, three hundred thousand, twenty".

Divisors: 1 2 4 5 10 20 2365001 4730002 9460004 11825005 23650010 47300020