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52071684 = 2237718731
BaseRepresentation
bin1100011010100…
…0110100000100
310121222111220220
43012220310010
5101312243214
65100024340
71201413330
oct306506404
9117874826
1052071684
1127436255
12155320b0
13aa32362
146cb67c0
1548889a9
hex31a8d04

52071684 has 48 divisors (see below), whose sum is σ = 140829696. Its totient is φ = 14666400.

The previous prime is 52071659. The next prime is 52071713. The reversal of 52071684 is 48617025.

It is a super-2 number, since 2×520716842 = 5422920549191712, which contains 22 as substring.

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, 1599 + ... + 10329.

It is an arithmetic number, because the mean of its divisors is an integer number (2933952).

Almost surely, 252071684 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52071684, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70414848).

52071684 is an abundant number, since it is smaller than the sum of its proper divisors (88758012).

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

52071684 is a wasteful number, since it uses less digits than its factorization.

52071684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8816 (or 8814 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 52071684 is about 7216.0712302471. The cubic root of 52071684 is about 373.4225506022.

The spelling of 52071684 in words is "fifty-two million, seventy-one thousand, six hundred eighty-four".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 71 84 142 213 284 426 497 852 994 1491 1988 2982 5964 8731 17462 26193 34924 52386 61117 104772 122234 183351 244468 366702 619901 733404 1239802 1859703 2479604 3719406 4339307 7438812 8678614 13017921 17357228 26035842 52071684