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53297949 = 317765983
BaseRepresentation
bin1100101101010…
…0001100011101
310201021211001010
43023110030131
5102121013244
65142205433
71215011415
oct313241435
9121254033
1053297949
11280a35a1
1215a23879
13b071563
147115645
154a2beb9
hex32d431d

53297949 has 4 divisors (see below), whose sum is σ = 71063936. Its totient is φ = 35531964.

The previous prime is 53297947. The next prime is 53297987. The reversal of 53297949 is 94979235.

53297949 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 53297949 - 21 = 53297947 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 53297898 and 53297907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53297947) 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, 8882989 + ... + 8882994.

It is an arithmetic number, because the mean of its divisors is an integer number (17765984).

Almost surely, 253297949 is an apocalyptic number.

It is an amenable number.

53297949 is a deficient number, since it is larger than the sum of its proper divisors (17765987).

53297949 is a wasteful number, since it uses less digits than its factorization.

53297949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17765986.

The product of its digits is 612360, while the sum is 48.

The square root of 53297949 is about 7300.5444317530. The cubic root of 53297949 is about 376.3311483045.

It can be divided in two parts, 532979 and 49, that added together give a triangular number (533028 = T1032).

The spelling of 53297949 in words is "fifty-three million, two hundred ninety-seven thousand, nine hundred forty-nine".

Divisors: 1 3 17765983 53297949