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52071854 = 264740241
BaseRepresentation
bin1100011010100…
…0110110101110
310121222112011012
43012220312232
5101312244404
65100025222
71201413662
oct306506656
9117875135
1052071854
112743639a
1215532212
13aa32463
146cb68a2
154888a6e
hex31a8dae

52071854 has 8 divisors (see below), whose sum is σ = 78230448. Its totient is φ = 25995040.

The previous prime is 52071841. The next prime is 52071881. The reversal of 52071854 is 45817025.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×520718542 = 5422955957994632, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 52071854.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18827 + ... + 21414.

It is an arithmetic number, because the mean of its divisors is an integer number (9778806).

Almost surely, 252071854 is an apocalyptic number.

52071854 is a deficient number, since it is larger than the sum of its proper divisors (26158594).

52071854 is a wasteful number, since it uses less digits than its factorization.

52071854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40890.

The product of its (nonzero) digits is 11200, while the sum is 32.

The square root of 52071854 is about 7216.0830095004. The cubic root of 52071854 is about 373.4229569764.

Adding to 52071854 its reverse (45817025), we get a palindrome (97888879).

It can be divided in two parts, 52071 and 854, that added together give a palindrome (52925).

The spelling of 52071854 in words is "fifty-two million, seventy-one thousand, eight hundred fifty-four".

Divisors: 1 2 647 1294 40241 80482 26035927 52071854