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53361401 = 359148639
BaseRepresentation
bin1100101110001…
…1101011111001
310201102001002012
43023203223321
5102130031101
65143415305
71215364412
oct313435371
9121361065
1053361401
1128137235
1215a54535
13b0943c2
147130809
154a40bbb
hex32e3af9

53361401 has 4 divisors (see below), whose sum is σ = 53510400. Its totient is φ = 53212404.

The previous prime is 53361391. The next prime is 53361439. The reversal of 53361401 is 10416335.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 10416335 = 52083267.

It is a cyclic number.

It is not a de Polignac number, because 53361401 - 218 = 53099257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53361461) 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, 73961 + ... + 74678.

It is an arithmetic number, because the mean of its divisors is an integer number (13377600).

Almost surely, 253361401 is an apocalyptic number.

It is an amenable number.

53361401 is a deficient number, since it is larger than the sum of its proper divisors (148999).

53361401 is a wasteful number, since it uses less digits than its factorization.

53361401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148998.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 53361401 is about 7304.8888424123. Note that the first 4 decimals coincide. The cubic root of 53361401 is about 376.4804316863.

Adding to 53361401 its reverse (10416335), we get a palindrome (63777736).

The spelling of 53361401 in words is "fifty-three million, three hundred sixty-one thousand, four hundred one".

Divisors: 1 359 148639 53361401