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52185552 = 2431957221
BaseRepresentation
bin1100011100010…
…0100111010000
310122012022010020
43013010213100
5101324414202
65102303440
71202366316
oct307044720
9118168106
1052185552
1127503861
1215587b80
13aa72133
146d060b6
1548ac5bc
hex31c49d0

52185552 has 40 divisors (see below), whose sum is σ = 141910560. Its totient is φ = 16479360.

The previous prime is 52185521. The next prime is 52185569. The reversal of 52185552 is 25558125.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27699 + ... + 29522.

It is an arithmetic number, because the mean of its divisors is an integer number (3547764).

Almost surely, 252185552 is an apocalyptic number.

It is an amenable number.

52185552 is an abundant number, since it is smaller than the sum of its proper divisors (89725008).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52185552 is a wasteful number, since it uses less digits than its factorization.

52185552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57251 (or 57245 counting only the distinct ones).

The product of its digits is 20000, while the sum is 33.

The square root of 52185552 is about 7223.9568105021. The cubic root of 52185552 is about 373.6945469419.

The spelling of 52185552 in words is "fifty-two million, one hundred eighty-five thousand, five hundred fifty-two".

Divisors: 1 2 3 4 6 8 12 16 19 24 38 48 57 76 114 152 228 304 456 912 57221 114442 171663 228884 343326 457768 686652 915536 1087199 1373304 2174398 2746608 3261597 4348796 6523194 8697592 13046388 17395184 26092776 52185552