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53790947 = 77684421
BaseRepresentation
bin1100110100110…
…0100011100011
310202012212022022
43031030203203
5102232302242
65200532055
71222133630
oct315144343
9122185268
1053790947
11283aaa31
121602102b
13b1b4a82
147203187
154ac80d2
hex334c8e3

53790947 has 4 divisors (see below), whose sum is σ = 61475376. Its totient is φ = 46106520.

The previous prime is 53790931. The next prime is 53790967. The reversal of 53790947 is 74909735.

It is a happy number.

53790947 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 53790947 - 24 = 53790931 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 53790898 and 53790907.

It is not an unprimeable number, because it can be changed into a prime (53790967) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 3842204 + ... + 3842217.

It is an arithmetic number, because the mean of its divisors is an integer number (15368844).

Almost surely, 253790947 is an apocalyptic number.

53790947 is a deficient number, since it is larger than the sum of its proper divisors (7684429).

53790947 is an equidigital number, since it uses as much as digits as its factorization.

53790947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7684428.

The product of its (nonzero) digits is 238140, while the sum is 44.

The square root of 53790947 is about 7334.2311798852. The cubic root of 53790947 is about 377.4879244123.

The spelling of 53790947 in words is "fifty-three million, seven hundred ninety thousand, nine hundred forty-seven".

Divisors: 1 7 7684421 53790947