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53100145 = 575712657
BaseRepresentation
bin1100101010001…
…1111001110001
310200220202201001
43022203321301
5102043201040
65134042001
71213225630
oct312437161
9120822631
1053100145
1127a78a1a
1215949301
13b002507
1470a3517
1549dd59a
hex32a3e71

53100145 has 16 divisors (see below), whose sum is σ = 72978048. Its totient is φ = 36334080.

The previous prime is 53100133. The next prime is 53100149. The reversal of 53100145 is 54100135.

It is not a de Polignac number, because 53100145 - 27 = 53100017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53100149) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18657 + ... + 21313.

It is an arithmetic number, because the mean of its divisors is an integer number (4561128).

Almost surely, 253100145 is an apocalyptic number.

It is an amenable number.

53100145 is a deficient number, since it is larger than the sum of its proper divisors (19877903).

53100145 is a wasteful number, since it uses less digits than its factorization.

53100145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3240.

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 53100145 is about 7286.9846301471. The cubic root of 53100145 is about 375.8650135072.

The spelling of 53100145 in words is "fifty-three million, one hundred thousand, one hundred forty-five".

Divisors: 1 5 7 35 571 2657 2855 3997 13285 18599 19985 92995 1517147 7585735 10620029 53100145