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52173970 = 2579211313
BaseRepresentation
bin1100011100000…
…1110010010010
310122011201020021
43013001302102
5101324031340
65102134054
71202320462
oct307016222
9118151207
1052173970
11274a6092
121558132a
13aa69a94
146d01ba2
1548a8e4a
hex31c1c92

52173970 has 32 divisors (see below), whose sum is σ = 95857920. Its totient is φ = 20442240.

The previous prime is 52173967. The next prime is 52173977. The reversal of 52173970 is 7937125.

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 not an unprimeable number, because it can be changed into a prime (52173977) 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, 166534 + ... + 166846.

It is an arithmetic number, because the mean of its divisors is an integer number (2995560).

Almost surely, 252173970 is an apocalyptic number.

52173970 is a deficient number, since it is larger than the sum of its proper divisors (43683950).

52173970 is a wasteful number, since it uses less digits than its factorization.

52173970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 610.

The product of its (nonzero) digits is 13230, while the sum is 34.

The square root of 52173970 is about 7223.1551277818. The cubic root of 52173970 is about 373.6668991204. Note that the first 3 decimals are identical.

The spelling of 52173970 in words is "fifty-two million, one hundred seventy-three thousand, nine hundred seventy".

Divisors: 1 2 5 10 79 158 211 313 395 422 626 790 1055 1565 2110 3130 16669 24727 33338 49454 66043 83345 123635 132086 166690 247270 330215 660430 5217397 10434794 26086985 52173970