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2311112320 = 27511328283
BaseRepresentation
bin1000100111000000…
…1100011010000000
312222001202200002121
42021300030122000
514213121043240
61021155054024
7111162062536
oct21160143200
95861680077
102311112320
11a86620990
12545ba1314
132aaa660aa
1417cd22156
15d7d6904a
hex89c0c680

2311112320 has 64 divisors (see below), whose sum is σ = 6027294240. Its totient is φ = 840401920.

The previous prime is 2311112303. The next prime is 2311112327. The reversal of 2311112320 is 232111132.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 2311112294 and 2311112303.

It is not an unprimeable number, because it can be changed into a prime (2311112327) 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, 157102 + ... + 171181.

Almost surely, 22311112320 is an apocalyptic number.

2311112320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2311112320 is an abundant number, since it is smaller than the sum of its proper divisors (3716181920).

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

2311112320 is a wasteful number, since it uses less digits than its factorization.

2311112320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328313 (or 328301 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 2311112320 is about 48074.0295793893. The cubic root of 2311112320 is about 1322.1285523121.

Adding to 2311112320 its reverse (232111132), we get a palindrome (2543223452).

The spelling of 2311112320 in words is "two billion, three hundred eleven million, one hundred twelve thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 11 16 20 22 32 40 44 55 64 80 88 110 128 160 176 220 320 352 440 640 704 880 1408 1760 3520 7040 328283 656566 1313132 1641415 2626264 3282830 3611113 5252528 6565660 7222226 10505056 13131320 14444452 18055565 21010112 26262640 28888904 36111130 42020224 52525280 57777808 72222260 105050560 115555616 144444520 210101120 231111232 288889040 462222464 577778080 1155556160 2311112320