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89395905221 = 722968361463
BaseRepresentation
bin101001101000001101…
…0010100001011000101
322112202011011111212122
41103100122110023011
52431040322431341
6105022400255325
76313212441200
oct1232032241305
9275664144778
1089395905221
1134a04726807
12153aa611545
13857892194c
1444809aa937
1524d330094b
hex14d06942c5

89395905221 has 12 divisors (see below), whose sum is σ = 103996350432. Its totient is φ = 76621233528.

The previous prime is 89395905211. The next prime is 89395905241. The reversal of 89395905221 is 12250959398.

It is not a de Polignac number, because 89395905221 - 210 = 89395904197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89395905211) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1423736 + ... + 1485198.

It is an arithmetic number, because the mean of its divisors is an integer number (8666362536).

Almost surely, 289395905221 is an apocalyptic number.

It is an amenable number.

89395905221 is a deficient number, since it is larger than the sum of its proper divisors (14600445211).

89395905221 is a wasteful number, since it uses less digits than its factorization.

89395905221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91160 (or 91153 counting only the distinct ones).

The product of its (nonzero) digits is 1749600, while the sum is 53.

The spelling of 89395905221 in words is "eighty-nine billion, three hundred ninety-five million, nine hundred five thousand, two hundred twenty-one".

Divisors: 1 7 49 29683 61463 207781 430241 1454467 3011687 1824406229 12770843603 89395905221