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52228998 = 232172341181
BaseRepresentation
bin1100011100111…
…1001110000110
310122021111201100
43013033032012
5101332311443
65103240530
71202640063
oct307171606
9118244640
1052228998
1127533468
12155a9146
13aa88b43
146d17c6a
1548ba3d3
hex31cf386

52228998 has 96 divisors (see below), whose sum is σ = 128786112. Its totient is φ = 15206400.

The previous prime is 52228997. The next prime is 52229003. The reversal of 52228998 is 89982225.

It is a super-3 number, since 3×522289983 (a number of 24 digits) contains 333 as substring.

Its product of digits (207360) is a multiple of the sum of its prime factors (270).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52228997) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 288468 + ... + 288648.

It is an arithmetic number, because the mean of its divisors is an integer number (1341522).

Almost surely, 252228998 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52228998, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64393056).

52228998 is an abundant number, since it is smaller than the sum of its proper divisors (76557114).

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

52228998 is a wasteful number, since it uses less digits than its factorization.

52228998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270 (or 267 counting only the distinct ones).

The product of its digits is 207360, while the sum is 45.

The square root of 52228998 is about 7226.9632626713. The cubic root of 52228998 is about 373.7982220603.

The spelling of 52228998 in words is "fifty-two million, two hundred twenty-eight thousand, nine hundred ninety-eight".

Divisors: 1 2 3 6 9 17 18 23 34 41 46 51 69 82 102 123 138 153 181 207 246 306 362 369 391 414 543 697 738 782 943 1086 1173 1394 1629 1886 2091 2346 2829 3077 3258 3519 4163 4182 5658 6154 6273 7038 7421 8326 8487 9231 12489 12546 14842 16031 16974 18462 22263 24978 27693 32062 37467 44526 48093 55386 66789 70771 74934 96186 126157 133578 141542 144279 170683 212313 252314 288558 341366 378471 424626 512049 636939 756942 1024098 1135413 1273878 1536147 2270826 2901611 3072294 5803222 8704833 17409666 26114499 52228998