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53279801 = 61786353
BaseRepresentation
bin1100101100111…
…1110000111001
310201020220010222
43023033300321
5102114423201
65141545425
71214604461
oct313176071
9121226128
1053279801
11280909a3
1215a15275
13b066213
14710cba1
154a2691b
hex32cfc39

53279801 has 4 divisors (see below), whose sum is σ = 53366772. Its totient is φ = 53192832.

The previous prime is 53279797. The next prime is 53279833. The reversal of 53279801 is 10897235.

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

It can be written as a sum of positive squares in 2 ways, for example, as 25200400 + 28079401 = 5020^2 + 5299^2 .

It is a cyclic number.

It is not a de Polignac number, because 53279801 - 22 = 53279797 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (53279861) 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, 42560 + ... + 43793.

It is an arithmetic number, because the mean of its divisors is an integer number (13341693).

Almost surely, 253279801 is an apocalyptic number.

It is an amenable number.

53279801 is a deficient number, since it is larger than the sum of its proper divisors (86971).

53279801 is an equidigital number, since it uses as much as digits as its factorization.

53279801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86970.

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 53279801 is about 7299.3014049291. The cubic root of 53279801 is about 376.2884297564.

The spelling of 53279801 in words is "fifty-three million, two hundred seventy-nine thousand, eight hundred one".

Divisors: 1 617 86353 53279801