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52071878 = 2293128961
BaseRepresentation
bin1100011010100…
…0110111000110
310121222112012002
43012220313012
5101312300003
65100025302
71201414025
oct306506706
9117875162
1052071878
1127436411
1215532232
13aa32481
146cb68bc
154888a88
hex31a8dc6

52071878 has 16 divisors (see below), whose sum is σ = 83410560. Its totient is φ = 24326400.

The previous prime is 52071841. The next prime is 52071881. The reversal of 52071878 is 87817025.

52071878 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×520718782 = 5422960956893768, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12683 + ... + 16278.

It is an arithmetic number, because the mean of its divisors is an integer number (5213160).

Almost surely, 252071878 is an apocalyptic number.

52071878 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

52071878 is a deficient number, since it is larger than the sum of its proper divisors (31338682).

52071878 is a wasteful number, since it uses less digits than its factorization.

52071878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29023.

The product of its (nonzero) digits is 31360, while the sum is 38.

The square root of 52071878 is about 7216.0846724522. The cubic root of 52071878 is about 373.4230143468.

The spelling of 52071878 in words is "fifty-two million, seventy-one thousand, eight hundred seventy-eight".

Divisors: 1 2 29 31 58 62 899 1798 28961 57922 839869 897791 1679738 1795582 26035939 52071878