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52203961 = 173373809
BaseRepresentation
bin1100011100100…
…1000110111001
310122020020101001
43013021012321
5101331011321
65102525001
71202504065
oct307110671
9118206331
1052203961
1127516677
1215596761
13aa7a624
146d0caa5
1548b2c91
hex31c91b9

52203961 has 8 divisors (see below), whose sum is σ = 52711560. Its totient is φ = 51699072.

The previous prime is 52203959. The next prime is 52203989. The reversal of 52203961 is 16930225.

52203961 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 30525625 + 21678336 = 5525^2 + 4656^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 52203961 - 21 = 52203959 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52203901) 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 7 ways as a sum of consecutive naturals, for example, 64125 + ... + 64933.

It is an arithmetic number, because the mean of its divisors is an integer number (6588945).

Almost surely, 252203961 is an apocalyptic number.

It is an amenable number.

52203961 is a deficient number, since it is larger than the sum of its proper divisors (507599).

52203961 is a wasteful number, since it uses less digits than its factorization.

52203961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1355.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 52203961 is about 7225.2308613635. The cubic root of 52203961 is about 373.7384833310.

The spelling of 52203961 in words is "fifty-two million, two hundred three thousand, nine hundred sixty-one".

Divisors: 1 173 373 809 64529 139957 301757 52203961