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52817830 = 2513541751
BaseRepresentation
bin1100100101111…
…0111110100110
310200101102102221
43021132332212
5102010132310
65124022554
71210641562
oct311367646
9120342387
1052817830
11278a58aa
1215831a5a
13ac33b70
14702c6a2
154984ada
hex325efa6

52817830 has 32 divisors (see below), whose sum is σ = 102711168. Its totient is φ = 19440000.

The previous prime is 52817813. The next prime is 52817857. The reversal of 52817830 is 3871825.

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 a congruent 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, 69955 + ... + 70705.

It is an arithmetic number, because the mean of its divisors is an integer number (3209724).

Almost surely, 252817830 is an apocalyptic number.

52817830 is a deficient number, since it is larger than the sum of its proper divisors (49893338).

52817830 is a wasteful number, since it uses less digits than its factorization.

52817830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1312.

The product of its (nonzero) digits is 13440, while the sum is 34.

The square root of 52817830 is about 7267.5876327706. The cubic root of 52817830 is about 375.1977149977.

The spelling of 52817830 in words is "fifty-two million, eight hundred seventeen thousand, eight hundred thirty".

Divisors: 1 2 5 10 13 26 65 130 541 751 1082 1502 2705 3755 5410 7033 7510 9763 14066 19526 35165 48815 70330 97630 406291 812582 2031455 4062910 5281783 10563566 26408915 52817830