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2173292189 = 17532412089
BaseRepresentation
bin1000000110001001…
…1100111010011101
312121110102200102022
42001202130322131
513422330322224
6555353105525
7104566451555
oct20142347235
95543380368
102173292189
11a15848652
125079b82a5
13288340013
141688c8165
15cabe365e
hex8189ce9d

2173292189 has 8 divisors (see below), whose sum is σ = 2344551480. Its totient is φ = 2006857216.

The previous prime is 2173292183. The next prime is 2173292213. The reversal of 2173292189 is 9812923712.

It can be written as a sum of positive squares in 4 ways, for example, as 262116100 + 1911176089 = 16190^2 + 43717^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2173292189 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 (2173292183) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1205144 + ... + 1206945.

It is an arithmetic number, because the mean of its divisors is an integer number (293068935).

Almost surely, 22173292189 is an apocalyptic number.

It is an amenable number.

2173292189 is a deficient number, since it is larger than the sum of its proper divisors (171259291).

2173292189 is a wasteful number, since it uses less digits than its factorization.

2173292189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2412159.

The product of its digits is 108864, while the sum is 44.

The square root of 2173292189 is about 46618.5820140424. The cubic root of 2173292189 is about 1295.3069816803.

The spelling of 2173292189 in words is "two billion, one hundred seventy-three million, two hundred ninety-two thousand, one hundred eighty-nine".

Divisors: 1 17 53 901 2412089 41005513 127840717 2173292189