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53173069 = 431236583
BaseRepresentation
bin1100101011010…
…1101101001101
310201001110201221
43022311231031
5102103014234
65135403341
71213651345
oct312655515
9121043657
1053173069
1128018794
1215983551
13b029771
1470c1d25
154a04eb4
hex32b5b4d

53173069 has 4 divisors (see below), whose sum is σ = 54409696. Its totient is φ = 51936444.

The previous prime is 53173067. The next prime is 53173073. The reversal of 53173069 is 96037135.

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 a cyclic number.

It is not a de Polignac number, because 53173069 - 21 = 53173067 is a prime.

It is a super-2 number, since 2×531730692 = 5654750533757522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53173061) 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, 618249 + ... + 618334.

It is an arithmetic number, because the mean of its divisors is an integer number (13602424).

Almost surely, 253173069 is an apocalyptic number.

It is an amenable number.

53173069 is a deficient number, since it is larger than the sum of its proper divisors (1236627).

53173069 is a wasteful number, since it uses less digits than its factorization.

53173069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1236626.

The product of its (nonzero) digits is 17010, while the sum is 34.

The square root of 53173069 is about 7291.9866291704. The cubic root of 53173069 is about 376.0369969820.

The spelling of 53173069 in words is "fifty-three million, one hundred seventy-three thousand, sixty-nine".

Divisors: 1 43 1236583 53173069