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89387261904852 = 223238911783541711
BaseRepresentation
bin10100010100110000010111…
…111111100100011111010100
3102201111100010222020221102100
4110110300113333210133110
543204010103021423402
6514035535145442100
724554005451556162
oct2424602777443724
9381440128227370
1089387261904852
1126532a1a02a1aa
12a037a251a0330
133ab524b30b822
14181051bbac232
15a5027b59371c
hex514c17fe47d4

89387261904852 has 72 divisors (see below), whose sum is σ = 226551629041920. Its totient is φ = 29716581136320.

The previous prime is 89387261904839. The next prime is 89387261904859. The reversal of 89387261904852 is 25840916278398.

89387261904852 is a `hidden beast` number, since 8 + 9 + 3 + 87 + 2 + 61 + 9 + 0 + 485 + 2 = 666.

It is a super-2 number, since 2×893872619048522 (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89387261904859) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 164738277 + ... + 165279987.

It is an arithmetic number, because the mean of its divisors is an integer number (3146550403360).

It is a 1-persistent number, because it is pandigital, but 2⋅89387261904852 = 178774523809704 is not.

Almost surely, 289387261904852 is an apocalyptic number.

It is an amenable number.

89387261904852 is an abundant number, since it is smaller than the sum of its proper divisors (137164367137068).

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

89387261904852 is a wasteful number, since it uses less digits than its factorization.

89387261904852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 553893 (or 553888 counting only the distinct ones).

The product of its (nonzero) digits is 418037760, while the sum is 72.

The spelling of 89387261904852 in words is "eighty-nine trillion, three hundred eighty-seven billion, two hundred sixty-one million, nine hundred four thousand, eight hundred fifty-two".

Divisors: 1 2 3 4 6 9 12 18 36 389 778 1167 1556 2334 3501 4668 7002 11783 14004 23566 35349 47132 70698 106047 141396 212094 424188 541711 1083422 1625133 2166844 3250266 4583587 4875399 6500532 9167174 9750798 13750761 18334348 19501596 27501522 41252283 55003044 82504566 165009132 210725579 421451158 632176737 842902316 1264353474 1896530211 2528706948 3793060422 6382980713 7586120844 12765961426 19148942139 25531922852 38297884278 57446826417 76595768556 114893652834 229787305668 2482979497357 4965958994714 7448938492071 9931917989428 14897876984142 22346815476213 29795753968284 44693630952426 89387261904852