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2169380530 = 25435045071
BaseRepresentation
bin1000000101001110…
…0001111010110010
312121012001221122001
42001103201322302
513420330134110
6555133204214
7104521300402
oct20123417262
95535057561
102169380530
11a13616779
1250663066a
132875a0725
1416818a802
15ca6be63a
hex814e1eb2

2169380530 has 16 divisors (see below), whose sum is σ = 3995697024. Its totient is φ = 847571760.

The previous prime is 2169380513. The next prime is 2169380531. The reversal of 2169380530 is 350839612.

It is a self number, because there is not a number n which added to its sum of digits gives 2169380530.

It is not an unprimeable number, because it can be changed into a prime (2169380531) 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, 2522106 + ... + 2522965.

It is an arithmetic number, because the mean of its divisors is an integer number (249731064).

Almost surely, 22169380530 is an apocalyptic number.

2169380530 is a deficient number, since it is larger than the sum of its proper divisors (1826316494).

2169380530 is a wasteful number, since it uses less digits than its factorization.

2169380530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5045121.

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 2169380530 is about 46576.6092582962. The cubic root of 2169380530 is about 1294.5293838108.

The spelling of 2169380530 in words is "two billion, one hundred sixty-nine million, three hundred eighty thousand, five hundred thirty".

Divisors: 1 2 5 10 43 86 215 430 5045071 10090142 25225355 50450710 216938053 433876106 1084690265 2169380530