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53206429 = 232313323
BaseRepresentation
bin1100101011110…
…1110110011101
310201010011111111
43022331312131
5102110101204
65140222021
71214150533
oct312756635
9121104444
1053206429
1128040861
121599a911
13b03b9c3
1470d0153
154a0ed04
hex32bdd9d

53206429 has 4 divisors (see below), whose sum is σ = 55519776. Its totient is φ = 50893084.

The previous prime is 53206427. The next prime is 53206451. The reversal of 53206429 is 92460235.

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 a cyclic number.

It is not a de Polignac number, because 53206429 - 21 = 53206427 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 53206429.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53206423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1156639 + ... + 1156684.

It is an arithmetic number, because the mean of its divisors is an integer number (13879944).

Almost surely, 253206429 is an apocalyptic number.

It is an amenable number.

53206429 is a deficient number, since it is larger than the sum of its proper divisors (2313347).

53206429 is a wasteful number, since it uses less digits than its factorization.

53206429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2313346.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 53206429 is about 7294.2737129888. The cubic root of 53206429 is about 376.1156205655.

It can be divided in two parts, 53206 and 429, that added together give a palindrome (53635).

The spelling of 53206429 in words is "fifty-three million, two hundred six thousand, four hundred twenty-nine".

Divisors: 1 23 2313323 53206429