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89889255654 = 23113759623893
BaseRepresentation
bin101001110110111010…
…0010011000011100110
322121000112111022102220
41103231310103003212
52433043122140104
6105143342413210
76331353031512
oct1235564230346
9277015438386
1089889255654
1135138161240
1215507891206
138626bb9193
1444ca311142
1525117a37d9
hex14edd130e6

89889255654 has 64 divisors (see below), whose sum is σ = 204836878080. Its totient is φ = 26053729920.

The previous prime is 89889255653. The next prime is 89889255689. The reversal of 89889255654 is 45655298898.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89889255653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 167869 + ... + 456024.

It is an arithmetic number, because the mean of its divisors is an integer number (3200576220).

Almost surely, 289889255654 is an apocalyptic number.

89889255654 is an abundant number, since it is smaller than the sum of its proper divisors (114947622426).

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

89889255654 is a wasteful number, since it uses less digits than its factorization.

89889255654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 624005.

The product of its digits is 248832000, while the sum is 69.

It can be divided in two parts, 89889 and 255654, that added together give a palindrome (345543).

The spelling of 89889255654 in words is "eighty-nine billion, eight hundred eighty-nine million, two hundred fifty-five thousand, six hundred fifty-four".

Divisors: 1 2 3 6 11 22 33 37 59 66 74 111 118 177 222 354 407 649 814 1221 1298 1947 2183 2442 3894 4366 6549 13098 24013 48026 72039 144078 623893 1247786 1871679 3743358 6862823 13725646 20588469 23084041 36809687 41176938 46168082 69252123 73619374 110429061 138504246 220858122 253924451 404906557 507848902 761773353 809813114 1214719671 1361958419 1523546706 2429439342 2723916838 4085875257 8171750514 14981542609 29963085218 44944627827 89889255654