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3122012320 = 25572787511
BaseRepresentation
bin1011101000010110…
…0010000010100000
322001120121122202221
42322011202002200
522343213343240
61233443320424
7140236444510
oct27205420240
98046548687
103122012320
111362327079
12731680114
133a9a6438b
142188c7840
15134145a4a
hexba1620a0

3122012320 has 48 divisors (see below), whose sum is σ = 8429436288. Its totient is φ = 1070403840.

The previous prime is 3122012279. The next prime is 3122012323. The reversal of 3122012320 is 232102213.

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 = 3122012294 and 3122012303.

It is not an unprimeable number, because it can be changed into a prime (3122012323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1392636 + ... + 1394875.

It is an arithmetic number, because the mean of its divisors is an integer number (175613256).

Almost surely, 23122012320 is an apocalyptic number.

It is an amenable number.

3122012320 is an abundant number, since it is smaller than the sum of its proper divisors (5307423968).

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

3122012320 is a wasteful number, since it uses less digits than its factorization.

3122012320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2787533 (or 2787525 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 3122012320 is about 55874.9704250481. The cubic root of 3122012320 is about 1461.5427989814.

Adding to 3122012320 its reverse (232102213), we get a palindrome (3354114533).

The spelling of 3122012320 in words is "three billion, one hundred twenty-two million, twelve thousand, three hundred twenty".

Divisors: 1 2 4 5 7 8 10 14 16 20 28 32 35 40 56 70 80 112 140 160 224 280 560 1120 2787511 5575022 11150044 13937555 19512577 22300088 27875110 39025154 44600176 55750220 78050308 89200352 97562885 111500440 156100616 195125770 223000880 312201232 390251540 446001760 624402464 780503080 1561006160 3122012320