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52212355 = 5131747251
BaseRepresentation
bin1100011100101…
…1001010000011
310122020122212221
43013023022003
5101331243410
65103031511
71202540416
oct307131203
9118218787
1052212355
1127521a08
121559b597
13aa813b0
146d11b7d
1548b54da
hex31cb283

52212355 has 16 divisors (see below), whose sum is σ = 71445024. Its totient is φ = 36288000.

The previous prime is 52212353. The next prime is 52212359. The reversal of 52212355 is 55321225.

It is a happy number.

It is not a de Polignac number, because 52212355 - 21 = 52212353 is a prime.

It is a super-2 number, since 2×522123552 = 5452260029292050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52212353) 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, 22521 + ... + 24730.

It is an arithmetic number, because the mean of its divisors is an integer number (4465314).

Almost surely, 252212355 is an apocalyptic number.

52212355 is a deficient number, since it is larger than the sum of its proper divisors (19232669).

52212355 is a wasteful number, since it uses less digits than its factorization.

52212355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47286.

The product of its digits is 3000, while the sum is 25.

The square root of 52212355 is about 7225.8117191081. The cubic root of 52212355 is about 373.7585136929.

The spelling of 52212355 in words is "fifty-two million, two hundred twelve thousand, three hundred fifty-five".

Divisors: 1 5 13 17 65 85 221 1105 47251 236255 614263 803267 3071315 4016335 10442471 52212355