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53129053 = 127418339
BaseRepresentation
bin1100101010101…
…0111101011101
310200222020100201
43022222331131
5102100112203
65134423501
71213406125
oct312527535
9120866321
1053129053
1127a9870a
1215961b91
13b012713
1470adc85
1549e6e1d
hex32aaf5d

53129053 has 4 divisors (see below), whose sum is σ = 53547520. Its totient is φ = 52710588.

The previous prime is 53129051. The next prime is 53129059. The reversal of 53129053 is 35092135.

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 53129053 - 21 = 53129051 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 (53129051) 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, 209043 + ... + 209296.

It is an arithmetic number, because the mean of its divisors is an integer number (13386880).

Almost surely, 253129053 is an apocalyptic number.

It is an amenable number.

53129053 is a deficient number, since it is larger than the sum of its proper divisors (418467).

53129053 is a wasteful number, since it uses less digits than its factorization.

53129053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418466.

The product of its (nonzero) digits is 4050, while the sum is 28.

The square root of 53129053 is about 7288.9678967601. The cubic root of 53129053 is about 375.9332087677.

It can be divided in two parts, 5312 and 9053, that added together give a triangular number (14365 = T169).

The spelling of 53129053 in words is "fifty-three million, one hundred twenty-nine thousand, fifty-three".

Divisors: 1 127 418339 53129053