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53706465 = 3257316349
BaseRepresentation
bin1100110011011…
…1111011100001
310202001120102100
43030313323201
5102222101330
65155041013
71221332421
oct314677341
9122046370
1053706465
112835250a
1215ba0169
13b185497
1471c0481
154aad060
hex3337ee1

53706465 has 24 divisors (see below), whose sum is σ = 94372200. Its totient is φ = 28249344.

The previous prime is 53706431. The next prime is 53706467. The reversal of 53706465 is 56460735.

53706465 is a `hidden beast` number, since 5 + 3 + 7 + 0 + 646 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1520289 + 52186176 = 1233^2 + 7224^2 .

It is not a de Polignac number, because 53706465 - 28 = 53706209 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53706467) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4890 + ... + 11459.

It is an arithmetic number, because the mean of its divisors is an integer number (3932175).

Almost surely, 253706465 is an apocalyptic number.

It is an amenable number.

53706465 is a deficient number, since it is larger than the sum of its proper divisors (40665735).

53706465 is a wasteful number, since it uses less digits than its factorization.

53706465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16433 (or 16430 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 36.

The square root of 53706465 is about 7328.4694855065. The cubic root of 53706465 is about 377.2901981731.

The spelling of 53706465 in words is "fifty-three million, seven hundred six thousand, four hundred sixty-five".

Divisors: 1 3 5 9 15 45 73 219 365 657 1095 3285 16349 49047 81745 147141 245235 735705 1193477 3580431 5967385 10741293 17902155 53706465