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53531101 = 134117777
BaseRepresentation
bin1100110000110…
…1000111011101
310201201122212101
43030031013131
5102200443401
65151205101
71220002231
oct314150735
9121648771
1053531101
1128242788
1215b16791
13b123710
1471765c1
154a76101
hex330d1dd

53531101 has 4 divisors (see below), whose sum is σ = 57648892. Its totient is φ = 49413312.

The previous prime is 53531077. The next prime is 53531131. The reversal of 53531101 is 10113535.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10113535 = 52022707.

It can be written as a sum of positive squares in 2 ways, for example, as 28879876 + 24651225 = 5374^2 + 4965^2 .

It is not a de Polignac number, because 53531101 - 211 = 53529053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53531131) 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, 2058876 + ... + 2058901.

It is an arithmetic number, because the mean of its divisors is an integer number (14412223).

Almost surely, 253531101 is an apocalyptic number.

It is an amenable number.

53531101 is a deficient number, since it is larger than the sum of its proper divisors (4117791).

53531101 is a wasteful number, since it uses less digits than its factorization.

53531101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4117790.

The product of its (nonzero) digits is 225, while the sum is 19.

The square root of 53531101 is about 7316.4951308670. The cubic root of 53531101 is about 376.8791038920.

Adding to 53531101 its reverse (10113535), we get a palindrome (63644636).

The spelling of 53531101 in words is "fifty-three million, five hundred thirty-one thousand, one hundred one".

Divisors: 1 13 4117777 53531101