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53961047 = 77708721
BaseRepresentation
bin1100110111011…
…0000101010111
310202112111122022
43031312011113
5102303223142
65204323355
71223442560
oct315660527
9122474568
1053961047
1128506808
12160a355b
13b24431a
147249167
154b0d6d2
hex3376157

53961047 has 4 divisors (see below), whose sum is σ = 61669776. Its totient is φ = 46252320.

The previous prime is 53961031. The next prime is 53961053. The reversal of 53961047 is 74016935.

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 53961047 - 24 = 53961031 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 53960998 and 53961016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53961067) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3854354 + ... + 3854367.

It is an arithmetic number, because the mean of its divisors is an integer number (15417444).

Almost surely, 253961047 is an apocalyptic number.

53961047 is a deficient number, since it is larger than the sum of its proper divisors (7708729).

53961047 is an equidigital number, since it uses as much as digits as its factorization.

53961047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7708728.

The product of its (nonzero) digits is 22680, while the sum is 35.

The square root of 53961047 is about 7345.8183342634. The cubic root of 53961047 is about 377.8854084682.

The spelling of 53961047 in words is "fifty-three million, nine hundred sixty-one thousand, forty-seven".

Divisors: 1 7 7708721 53961047