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2160730 = 2511131511
BaseRepresentation
bin1000001111100001011010
311001202222001
420033201122
51023120410
6114151214
724236335
oct10174132
94052861
102160730
111246430
1288250a
135a8650
1440361c
152ca33a
hex20f85a

2160730 has 32 divisors (see below), whose sum is σ = 4572288. Its totient is φ = 724800.

The previous prime is 2160721. The next prime is 2160733. The reversal of 2160730 is 370612.

It is a junction number, because it is equal to n+sod(n) for n = 2160698 and 2160707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2160733) 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, 675 + ... + 2185.

It is an arithmetic number, because the mean of its divisors is an integer number (142884).

22160730 is an apocalyptic number.

2160730 is an abundant number, since it is smaller than the sum of its proper divisors (2411558).

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

2160730 is a wasteful number, since it uses less digits than its factorization.

2160730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1542.

The product of its (nonzero) digits is 252, while the sum is 19.

The square root of 2160730 is about 1469.9421757335. The cubic root of 2160730 is about 129.2806421443.

The spelling of 2160730 in words is "two million, one hundred sixty thousand, seven hundred thirty".

Divisors: 1 2 5 10 11 13 22 26 55 65 110 130 143 286 715 1430 1511 3022 7555 15110 16621 19643 33242 39286 83105 98215 166210 196430 216073 432146 1080365 2160730