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102025143 = 3311317167
BaseRepresentation
bin1100001010011…
…00011110110111
321002222102012000
412011030132313
5202104301033
614042430343
72346125253
oct605143667
9232872160
10102025143
1152655000
122a2023b3
13181a250c
14d79b263
158e54a13
hex614c7b7

102025143 has 64 divisors (see below), whose sum is σ = 177085440. Its totient is φ = 57847680.

The previous prime is 102025141. The next prime is 102025163. The reversal of 102025143 is 341520201.

It is not a de Polignac number, because 102025143 - 21 = 102025141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102025141) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 610846 + ... + 611012.

It is an arithmetic number, because the mean of its divisors is an integer number (2766960).

Almost surely, 2102025143 is an apocalyptic number.

102025143 is a deficient number, since it is larger than the sum of its proper divisors (75060297).

102025143 is a wasteful number, since it uses less digits than its factorization.

102025143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226 (or 198 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 102025143 is about 10100.7496256466. The cubic root of 102025143 is about 467.2712606492.

Adding to 102025143 its reverse (341520201), we get a palindrome (443545344).

The spelling of 102025143 in words is "one hundred two million, twenty-five thousand, one hundred forty-three".

Divisors: 1 3 9 11 17 27 33 51 99 121 153 167 187 297 363 459 501 561 1089 1331 1503 1683 1837 2057 2839 3267 3993 4509 5049 5511 6171 8517 11979 16533 18513 20207 22627 25551 31229 35937 49599 55539 60621 67881 76653 93687 181863 203643 222277 281061 343519 545589 610929 666831 843183 1030557 2000493 3091671 3778709 6001479 9275013 11336127 34008381 102025143