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53258217 = 3313791511
BaseRepresentation
bin1100101100101…
…0011111101001
310201012210112120
43023022133221
5102113230332
65141301453
71214454525
oct313123751
9121183476
1053258217
1128076761
1215a04889
13b05944c
147104d85
154a2032c
hex32ca7e9

53258217 has 16 divisors (see below), whose sum is σ = 73543680. Its totient is φ = 34246800.

The previous prime is 53258201. The next prime is 53258237. The reversal of 53258217 is 71285235.

It is not a de Polignac number, because 53258217 - 24 = 53258201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53258237) 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, 34492 + ... + 36002.

It is an arithmetic number, because the mean of its divisors is an integer number (4596480).

Almost surely, 253258217 is an apocalyptic number.

It is an amenable number.

53258217 is a deficient number, since it is larger than the sum of its proper divisors (20285463).

53258217 is a wasteful number, since it uses less digits than its factorization.

53258217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1924.

The product of its digits is 16800, while the sum is 33.

The square root of 53258217 is about 7297.8227575079. The cubic root of 53258217 is about 376.2376105824.

The spelling of 53258217 in words is "fifty-three million, two hundred fifty-eight thousand, two hundred seventeen".

Divisors: 1 3 31 93 379 1137 1511 4533 11749 35247 46841 140523 572669 1718007 17752739 53258217