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52019898 = 23717411777
BaseRepresentation
bin1100011001110…
…0001010111010
310121212212212220
43012130022322
5101304114043
65054544510
71201106340
oct306341272
9117785786
1052019898
1127400357
1215508136
13aa14908
146ca1990
154878483
hex319c2ba

52019898 has 64 divisors (see below), whose sum is σ = 129040128. Its totient is φ = 13639680.

The previous prime is 52019897. The next prime is 52019899. The reversal of 52019898 is 89891025.

It is a happy number.

52019898 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (52019897) and next prime (52019899).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (52019893) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 28386 + ... + 30162.

It is an arithmetic number, because the mean of its divisors is an integer number (2016252).

Almost surely, 252019898 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52019898, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64520064).

52019898 is an abundant number, since it is smaller than the sum of its proper divisors (77020230).

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

52019898 is a wasteful number, since it uses less digits than its factorization.

52019898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1847.

The product of its (nonzero) digits is 51840, while the sum is 42.

The square root of 52019898 is about 7212.4820970315. The cubic root of 52019898 is about 373.2987182688.

The spelling of 52019898 in words is "fifty-two million, nineteen thousand, eight hundred ninety-eight".

Divisors: 1 2 3 6 7 14 17 21 34 41 42 51 82 102 119 123 238 246 287 357 574 697 714 861 1394 1722 1777 2091 3554 4182 4879 5331 9758 10662 12439 14637 24878 29274 30209 37317 60418 72857 74634 90627 145714 181254 211463 218571 422926 437142 509999 634389 1019998 1238569 1268778 1529997 2477138 3059994 3715707 7431414 8669983 17339966 26009949 52019898