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90049853161 = 2361717911443
BaseRepresentation
bin101001111011101100…
…0111011011011101001
322121102201200111210201
41103313120323123221
52433410230300121
6105211320512201
76335343060022
oct1236730733351
9277381614721
1090049853161
113520a881554
121555161b661
1386512588a8
144503797c49
152520927e91
hex14f763b6e9

90049853161 has 32 divisors (see below), whose sum is σ = 98085150720. Its totient is φ = 82464782400.

The previous prime is 90049853143. The next prime is 90049853171. The reversal of 90049853161 is 16135894009.

It is a cyclic number.

It is not a de Polignac number, because 90049853161 - 29 = 90049852649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90049853171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7863706 + ... + 7875148.

It is an arithmetic number, because the mean of its divisors is an integer number (3065160960).

Almost surely, 290049853161 is an apocalyptic number.

It is an amenable number.

90049853161 is a deficient number, since it is larger than the sum of its proper divisors (8035297559).

90049853161 is a wasteful number, since it uses less digits than its factorization.

90049853161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11677.

The product of its (nonzero) digits is 233280, while the sum is 46.

The spelling of 90049853161 in words is "ninety billion, forty-nine million, eight hundred fifty-three thousand, one hundred sixty-one".

Divisors: 1 23 61 71 79 1403 1633 1817 4331 4819 5609 11443 99613 110837 129007 263189 342149 698023 812453 903997 7869427 16054529 18686419 20791931 49559633 55143817 64183787 1139871559 1268307791 1476227101 3915211007 90049853161