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89197032993 = 379419898231
BaseRepresentation
bin101001100010010001…
…1101011011000100001
322112020021221202110120
41103010203223120201
52430133420023433
6104550533550453
76305246161605
oct1230443533041
9275207852416
1089197032993
11349124440a2
1215353aa5429
138546670a83
1444623dd505
1524c0b1a7b3
hex14c48eb621

89197032993 has 16 divisors (see below), whose sum is σ = 120722380800. Its totient is φ = 58571781840.

The previous prime is 89197032979. The next prime is 89197032997. The reversal of 89197032993 is 39923079198.

It is not a de Polignac number, because 89197032993 - 210 = 89197031969 is a prime.

It is a super-2 number, since 2×891970329932 (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (89197032997) 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, 349813 + ... + 548418.

It is an arithmetic number, because the mean of its divisors is an integer number (7545148800).

Almost surely, 289197032993 is an apocalyptic number.

It is an amenable number.

89197032993 is a deficient number, since it is larger than the sum of its proper divisors (31525347807).

89197032993 is a wasteful number, since it uses less digits than its factorization.

89197032993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 898732.

The product of its (nonzero) digits is 6613488, while the sum is 60.

The spelling of 89197032993 in words is "eighty-nine billion, one hundred ninety-seven million, thirty-two thousand, nine hundred ninety-three".

Divisors: 1 3 79 237 419 1257 33101 99303 898231 2694693 70960249 212880747 376358789 1129076367 29732344331 89197032993