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89690707806 = 2374914349273
BaseRepresentation
bin101001110000111111…
…0111001011101011110
322120111200220000222220
41103201332321131132
52432141310122211
6105111531050210
76323422303020
oct1234176713536
9276450800886
1089690707806
1135046080307
12154712a0966
1385c4a1cb4b
1444abbca010
1524ee134806
hex14e1fb975e

89690707806 has 32 divisors (see below), whose sum is σ = 205424909568. Its totient is φ = 25573719360.

The previous prime is 89690707801. The next prime is 89690707867. The reversal of 89690707806 is 60870709698.

It is a self number, because there is not a number n which added to its sum of digits gives 89690707806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89690707801) 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 15 ways as a sum of consecutive naturals, for example, 2154015 + ... + 2195258.

It is an arithmetic number, because the mean of its divisors is an integer number (6419528424).

Almost surely, 289690707806 is an apocalyptic number.

89690707806 is an abundant number, since it is smaller than the sum of its proper divisors (115734201762).

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

89690707806 is a wasteful number, since it uses less digits than its factorization.

89690707806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4349776.

The product of its (nonzero) digits is 9144576, while the sum is 60.

The spelling of 89690707806 in words is "eighty-nine billion, six hundred ninety million, seven hundred seven thousand, eight hundred six".

Divisors: 1 2 3 6 7 14 21 42 491 982 1473 2946 3437 6874 10311 20622 4349273 8698546 13047819 26095638 30444911 60889822 91334733 182669466 2135493043 4270986086 6406479129 12812958258 14948451301 29896902602 44845353903 89690707806