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89898392481 = 31031231236339
BaseRepresentation
bin101001110111001011…
…1001001101110100001
322121001011200111210220
41103232113021232201
52433102442024411
6105144310313253
76331523504502
oct1235627115641
9277034614726
1089898392481
1135142331937
121550a958829
138628a67ba1
1444cb60cba9
1525124aab06
hex14ee5c9ba1

89898392481 has 16 divisors (see below), whose sum is σ = 121127086080. Its totient is φ = 59301930960.

The previous prime is 89898392449. The next prime is 89898392483. The reversal of 89898392481 is 18429389898.

It is not a de Polignac number, because 89898392481 - 25 = 89898392449 is a prime.

It is a super-2 number, since 2×898983924812 (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (89898392483) 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, 262210 + ... + 498548.

It is an arithmetic number, because the mean of its divisors is an integer number (7570442880).

Almost surely, 289898392481 is an apocalyptic number.

It is an amenable number.

89898392481 is a deficient number, since it is larger than the sum of its proper divisors (31228693599).

89898392481 is a wasteful number, since it uses less digits than its factorization.

89898392481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237676.

The product of its digits is 71663616, while the sum is 69.

The spelling of 89898392481 in words is "eighty-nine billion, eight hundred ninety-eight million, three hundred ninety-two thousand, four hundred eighty-one".

Divisors: 1 3 103 309 1231 3693 126793 236339 380379 709017 24342917 73028751 290933309 872799927 29966130827 89898392481