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105632142 = 23721189367
BaseRepresentation
bin1100100101111…
…01000110001110
321100202200001120
412102331012032
5204020212032
614252021410
72421600300
oct622750616
9240680046
10105632142
1154698aa0
122b461866
1318b66235
1410059970
15941862c
hex64bd18e

105632142 has 96 divisors (see below), whose sum is σ = 271848960. Its totient is φ = 27054720.

The previous prime is 105632141. The next prime is 105632161. The reversal of 105632142 is 241236501.

It is a super-2 number, since 2×1056321422 = 22316298847016328, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105632141) 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, 287643 + ... + 288009.

It is an arithmetic number, because the mean of its divisors is an integer number (2831760).

Almost surely, 2105632142 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 105632142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (135924480).

105632142 is an abundant number, since it is smaller than the sum of its proper divisors (166216818).

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

105632142 is a wasteful number, since it uses less digits than its factorization.

105632142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486 (or 479 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 105632142 is about 10277.7498510131. The cubic root of 105632142 is about 472.7142512573.

Adding to 105632142 its reverse (241236501), we get a palindrome (346868643).

The spelling of 105632142 in words is "one hundred five million, six hundred thirty-two thousand, one hundred forty-two".

Divisors: 1 2 3 6 7 11 14 21 22 33 42 49 66 77 89 98 147 154 178 231 267 294 367 462 534 539 623 734 979 1078 1101 1246 1617 1869 1958 2202 2569 2937 3234 3738 4037 4361 5138 5874 6853 7707 8074 8722 12111 13083 13706 15414 17983 20559 24222 26166 28259 32663 35966 41118 47971 53949 56518 65326 84777 95942 97989 107898 143913 169554 195978 197813 228641 287826 359293 395626 457282 593439 685923 718586 1077879 1186878 1371846 1600487 2155758 2515051 3200974 4801461 5030102 7545153 9602922 15090306 17605357 35210714 52816071 105632142