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89798775001248 = 2531975701832879
BaseRepresentation
bin10100011010101111101000…
…000101011101000010100000
3102202221200100000202012120210
4110122233220011131002200
543232230342400014443
6514552553203334120
724625514233303665
oct2432575005350240
9382850300665523
1089798775001248
11266814a04912a5
12a0a3730081340
133b14cacc63631
1418263d9045a6c
15a5ad13acec33
hex51abe815d0a0

89798775001248 has 96 divisors (see below), whose sum is σ = 236960183496960. Its totient is φ = 29775721651200.

The previous prime is 89798775001183. The next prime is 89798775001249. The reversal of 89798775001248 is 84210057789798.

It is a tau number, because it is divible by the number of its divisors (96).

It is a self number, because there is not a number n which added to its sum of digits gives 89798775001248.

It is not an unprimeable number, because it can be changed into a prime (89798775001249) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 107400873 + ... + 108233751.

It is an arithmetic number, because the mean of its divisors is an integer number (2468335244760).

Almost surely, 289798775001248 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 89798775001248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (118480091748480).

89798775001248 is an abundant number, since it is smaller than the sum of its proper divisors (147161408495712).

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

89798775001248 is a wasteful number, since it uses less digits than its factorization.

89798775001248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 838790 (or 838782 counting only the distinct ones).

The product of its (nonzero) digits is 568995840, while the sum is 75.

The spelling of 89798775001248 in words is "eighty-nine trillion, seven hundred ninety-eight billion, seven hundred seventy-five million, one thousand, two hundred forty-eight".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 96 197 394 591 788 1182 1576 2364 3152 4728 5701 6304 9456 11402 17103 18912 22804 34206 45608 68412 91216 136824 182432 273648 547296 832879 1123097 1665758 2246194 2498637 3331516 3369291 4492388 4997274 6663032 6738582 8984776 9994548 13326064 13477164 17969552 19989096 26652128 26954328 35939104 39978192 53908656 79956384 107817312 164077163 328154326 492231489 656308652 984462978 1312617304 1968925956 2625234608 3937851912 4748243179 5250469216 7875703824 9496486358 14244729537 15751407648 18992972716 28489459074 37985945432 56978918148 75971890864 113957836296 151943781728 227915672592 455831345184 935403906263 1870807812526 2806211718789 3741615625052 5612423437578 7483231250104 11224846875156 14966462500208 22449693750312 29932925000416 44899387500624 89798775001248