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2111331230 = 252317335297
BaseRepresentation
bin111110111011000…
…0101101110011110
312110010211201221222
41331312011232132
513311000044410
6545301053342
7103215006431
oct17566055636
95403751858
102111331230
11993878448
124ab0b7252
13278557628
14160599818
15c5554955
hex7dd85b9e

2111331230 has 32 divisors (see below), whose sum is σ = 3968668224. Its totient is φ = 807195136.

The previous prime is 2111331191. The next prime is 2111331239. The reversal of 2111331230 is 321331112.

It is a junction number, because it is equal to n+sod(n) for n = 2111331199 and 2111331208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111331239) 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, 395942 + ... + 401238.

It is an arithmetic number, because the mean of its divisors is an integer number (124020882).

Almost surely, 22111331230 is an apocalyptic number.

2111331230 is a deficient number, since it is larger than the sum of its proper divisors (1857336994).

2111331230 is a wasteful number, since it uses less digits than its factorization.

2111331230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7060.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 2111331230 is about 45949.2244765894. The cubic root of 2111331230 is about 1282.8782945494.

Adding to 2111331230 its reverse (321331112), we get a palindrome (2432662342).

The spelling of 2111331230 in words is "two billion, one hundred eleven million, three hundred thirty-one thousand, two hundred thirty".

Divisors: 1 2 5 10 23 46 115 230 1733 3466 5297 8665 10594 17330 26485 39859 52970 79718 121831 199295 243662 398590 609155 1218310 9179701 18359402 45898505 91797010 211133123 422266246 1055665615 2111331230