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2111230355 = 51331532373
BaseRepresentation
bin111110111010110…
…1101000110010011
312110010122121120212
41331311231012103
513310433332410
6545254554335
7103214106353
oct17565550623
95403577525
102111230355
11993809683
124ab0689ab
13278520740
14160570b63
15c5534b05
hex7dd6d193

2111230355 has 48 divisors (see below), whose sum is σ = 2878208256. Its totient is φ = 1476334080.

The previous prime is 2111230349. The next prime is 2111230361. The reversal of 2111230355 is 5530321112.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2111230349) and next prime (2111230361).

It is not a de Polignac number, because 2111230355 - 212 = 2111226259 is a prime.

It is a super-2 number, since 2×21112303552 = 8914587223746852050, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2111230355.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5659949 + ... + 5660321.

It is an arithmetic number, because the mean of its divisors is an integer number (59962672).

Almost surely, 22111230355 is an apocalyptic number.

2111230355 is a deficient number, since it is larger than the sum of its proper divisors (766977901).

2111230355 is a wasteful number, since it uses less digits than its factorization.

2111230355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 528 (or 475 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 2111230355 is about 45948.1267844512. The cubic root of 2111230355 is about 1282.8578631415.

Adding to 2111230355 its reverse (5530321112), we get a palindrome (7641551467).

The spelling of 2111230355 in words is "two billion, one hundred eleven million, two hundred thirty thousand, three hundred fifty-five".

Divisors: 1 5 13 31 53 65 155 265 373 403 689 1643 1865 2015 2809 3445 4849 8215 11563 14045 19769 21359 24245 36517 57815 87079 98845 106795 150319 182585 256997 435395 612839 751595 1047757 1132027 1284985 3064195 5238785 5660135 7966907 13620841 32480467 39834535 68104205 162402335 422246071 2111230355