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52709830 = 2537433313
BaseRepresentation
bin1100100100010…
…0100111000110
310200011221021221
43021010213012
5101443203310
65121430554
71210011655
oct311044706
9120157257
1052709830
1127831748
121579b45a
13abc6964
14700119c
154962ada
hex32449c6

52709830 has 32 divisors (see below), whose sum is σ = 99738144. Its totient is φ = 20030976.

The previous prime is 52709803. The next prime is 52709831. The reversal of 52709830 is 3890725.

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52709831) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 14254 + ... + 17566.

It is an arithmetic number, because the mean of its divisors is an integer number (3116817).

Almost surely, 252709830 is an apocalyptic number.

52709830 is a deficient number, since it is larger than the sum of its proper divisors (47028314).

52709830 is a wasteful number, since it uses less digits than its factorization.

52709830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3400.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 52709830 is about 7260.1535796428. The cubic root of 52709830 is about 374.9418102303.

The spelling of 52709830 in words is "fifty-two million, seven hundred nine thousand, eight hundred thirty".

Divisors: 1 2 5 10 37 43 74 86 185 215 370 430 1591 3182 3313 6626 7955 15910 16565 33130 122581 142459 245162 284918 612905 712295 1225810 1424590 5270983 10541966 26354915 52709830