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102441240 = 23335118623
BaseRepresentation
bin1100001101100…
…10000100011000
321010202112222000
412012302010120
5202211104430
614055401000
72352510336
oct606620430
9233675860
10102441240
1152909690
122a383160
13182b9a25
14d868b56
158ed7e60
hex61b2118

102441240 has 128 divisors (see below), whose sum is σ = 372556800. Its totient is φ = 24831360.

The previous prime is 102441239. The next prime is 102441257. The reversal of 102441240 is 42144201.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7569 + ... + 16191.

It is an arithmetic number, because the mean of its divisors is an integer number (2910600).

Almost surely, 2102441240 is an apocalyptic number.

102441240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 102441240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (186278400).

102441240 is an abundant number, since it is smaller than the sum of its proper divisors (270115560).

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

102441240 is a wasteful number, since it uses less digits than its factorization.

102441240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8654 (or 8644 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 102441240 is about 10121.3260000852. The cubic root of 102441240 is about 467.9056351490.

Adding to 102441240 its reverse (42144201), we get a palindrome (144585441).

The spelling of 102441240 in words is "one hundred two million, four hundred forty-one thousand, two hundred forty".

Divisors: 1 2 3 4 5 6 8 9 10 11 12 15 18 20 22 24 27 30 33 36 40 44 45 54 55 60 66 72 88 90 99 108 110 120 132 135 165 180 198 216 220 264 270 297 330 360 396 440 495 540 594 660 792 990 1080 1188 1320 1485 1980 2376 2970 3960 5940 8623 11880 17246 25869 34492 43115 51738 68984 77607 86230 94853 103476 129345 155214 172460 189706 206952 232821 258690 284559 310428 344920 379412 388035 465642 474265 517380 569118 620856 758824 776070 853677 931284 948530 1034760 1138236 1164105 1422795 1552140 1707354 1862568 1897060 2276472 2328210 2561031 2845590 3104280 3414708 3794120 4268385 4656420 5122062 5691180 6829416 8536770 9312840 10244124 11382360 12805155 17073540 20488248 25610310 34147080 51220620 102441240