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53208545 = 5132335591
BaseRepresentation
bin1100101011111…
…0010111100001
310201010021101212
43022332113201
5102110133140
65140235505
71214156645
oct312762741
9121107355
1053208545
1128042405
121599bb95
13b03c960
1470d0c25
154a10765
hex32be5e1

53208545 has 16 divisors (see below), whose sum is σ = 71753472. Its totient is φ = 37583040.

The previous prime is 53208527. The next prime is 53208577. The reversal of 53208545 is 54580235.

It is not a de Polignac number, because 53208545 - 26 = 53208481 is a prime.

It is a super-2 number, since 2×532085452 = 5662298522034050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16301 + ... + 19290.

It is an arithmetic number, because the mean of its divisors is an integer number (4484592).

Almost surely, 253208545 is an apocalyptic number.

It is an amenable number.

53208545 is a deficient number, since it is larger than the sum of its proper divisors (18544927).

53208545 is a wasteful number, since it uses less digits than its factorization.

53208545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35632.

The product of its (nonzero) digits is 24000, while the sum is 32.

The square root of 53208545 is about 7294.4187568305. The cubic root of 53208545 is about 376.1206064925.

The spelling of 53208545 in words is "fifty-three million, two hundred eight thousand, five hundred forty-five".

Divisors: 1 5 13 23 65 115 299 1495 35591 177955 462683 818593 2313415 4092965 10641709 53208545